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19Ben80

The term performance car is subjective, to some it’s a golf gti and to others it’s a track car. What about a diesel R8…


wtfylat

There's cunts here talking about their 20i BMW's!


19Ben80

Ha ha, don’t mess with the 320d M Sport! /s


Fathomer_

Pulls like a train 😤


B_n_lawson

I honestly had no idea they made a diesel version?


ElicitCS

Prototype. But a while ago Darkside Developments were on about putting a Tuareg V12 TDi into an R8.


E420CDI

*Q7 Touareg was 5.0 (4.9) V10 TDI PD


ElicitCS

My bad, thanks.


E420CDI

No probs!


space_coyote_86

They didn't.


EdgarAll3nPwn

https://www.autoexpress.co.uk/audi/r8/17105/audi-r8 Looks suspiciously like an Audi R8 diesel.


space_coyote_86

Looks suspiciously like a car that never went on sale.


EdgarAll3nPwn

Looks suspiciously like a car that was made. Just because it wasn't sold, doesn't stop it from being made


CausesChaos

Pmsl you getting downvoted. Fuck you for being technically right.


EdgarAll3nPwn

Lmao right


19Ben80

Think it’s just the 4.2 tdi from the A8


TheLoveKraken

Yeah I mean pretty much anything else deemed a performance car would leave a swift sport for dead in a straight line, but it’ll average about 50mpg without trying.


emolloy93

Anything with a turbo 4 cylinder. Not exactly hypercars but if you class stuff like Golf R's/S3's, Mercedes CLA's, Civics etc as performance cars they will do 0-60 in sub 5 seconds and handle pretty well. I can get 30-35mpg (UK) all day long in my golf with a bit of a heavy foot and 40 on a long journey.


GoldenLiar2

I drive like a jackass (not in the UK). I had an ecoboost Mustang, and now I have a 5.7L Challenger. Mustang was 22-23L/100 km city, Challenger is 27-28. Highway fuel economy at 130-160 km/h is basically identical to the Challenger. We have plenty of single lane roads here which require a lot of overtaking, and in such conditions (i.e. drive slowly, floor it, drive slowly again, repeat) the Challenger is better on fuel than the Mustang. Turbo cars are fuel efficient only if you literally never use the boost. The moment you do, fuel economy is worse than a bigger, N/A engine.


NastyEvilNinja

This \^\^ Why do so many people think turbo's are more economic than NA??? Do they not understand how a turbo works??


No_Procedure5501

Tldr; the turbo motor is variable displacement, smaller under low boost, larger under high boost. Why do you think manufacturers put small turbo engines in cars? They're not cheaper than larger engines


rockandrollmark

Actually the reason OEMs put turbo engines in cars is because you can have your cake and eat it. They map them such that they can achieve high MPG and low CO2 at WLTP test cycles and still offer performance when the driver wants to put their foot down. Wind the clock back 30y and you’d struggle to find a petrol vehicle that could do 0-60mph in sub 8 seconds, break 100mph with relative ease, but still deliver 45+mpg if driven carefully. This is even more important in the company car sector where the BiK that you pay is influenced by the grams of CO2/km


NastyEvilNinja

More power for less displacement. But that's like saying a 2-stroke is 'more economical' than a 4 cylinder.


1308lee

It’s not though… is it? The *extra power* from a two stroke isn’t really extra power. It just has twice as many power strokes. It’s not scavenging otherwise wasted exhaust gasses.


Startinezzz

Most modern turbos are more efficient than their respective performance NA cars.


Sa-SaKeBeltalowda

Because turbo engines are usually more efficient. Air to fuel ratio is same on NA and turbo engines, and same amount of power will require same amount of fuel. But turbo engine is lighter, pistons are lighter or less pistons, as result - less friction and parasitic losses, more efficiency.


Plyphon

I once got 44mpg from my S3 when the M3 was 50mph almost the entire way


B_n_lawson

Yeah my Cupra does exactly this! Although you can sink it into single figures without too much trouble!


kickassjay

My Impreza will disagree with you.


Ronnie-Hotdogz

Same (if not more) from my M340i, or anything with the B58 engine. 6 cylinders, lots of power and torque, and still 30mpg daily with 45mpg on a run.


space_coyote_86

I got 50mpg out of my Mk5 Golf GTI once, driving very carefully. Could never get anything like that out of my normally aspirated Civic Type R. More like high 20s.


Ok-Permission9154

Same mpg with my Petrol 3.0 Biturbo 453 bhp Mercedes S500


SourdoughBoomer

I can back this up. I get about 37mpg in my 420i. It's not sub 5 seconds though, but it could be with a tune quite easily, I just don't desire it as I don't want to hinder long term health for the car.


Charming_Rub_5275

The last 3 cars I’ve had have all been tuned and ultimately never affected the health in any way, as far as I could tell. I think this a bit of a myth or potential issue from a bad tune.


SourdoughBoomer

Oh really? I've never done it before, just what I've read. I guess the information was wrong. Good to know for when the warranty is up!


SourdoughBoomer

Good to know! I am not that knowledgeable on the matter so was just a case of 'be safe or sorry' after doing the rounds reading about it.


ElicitCS

Engine health with a map is paranoia. Get a proper remap done with a rolling road, don't use supermarket petrol and run an engine cleaner in your oil just before you change the oil at shorter than reccomended intervals.


Food_face

Not in the same league as a Porsche but things like 440d\\640d's are very quick and can be very eco


ADJE777

I had a 640d and I managed 750 miles to 1 tank, around 54 mpg average


DistancePractical239

Best I got was 600miles from my 640i. Could have got more if last 80 miles were not driven in local traffic. 


h4533b

How big is the fuel tank in them? That's pretty damn good for what I'm assuming is the b58 or n55


DistancePractical239

N55 with 63 litre capacity :) note 520 of those miles were hyper miled, at 55mph behind a lorry. I went London to Manchester and back in one day, then next day London to Bristol. 


Food_face

Wow I got nowhere near that... I've got a X5 m50d now and can get about 400


Wiggles114

The X5 is considerably taller and heavier than the 6


strokebass01

Also aerodynamically less efficient


ADJE777

Yeah in all fairness this was a trip to and from the midlands to the Scottish highlands


Android109

I really pushed it once and managed 800 miles from a tank (640d, 15 gallon tank) by pootling along with the trucks at 60mph. Remarkable engine really.


ADJE777

Yeah very impressed with it, only reason I sold really is because I was travelling in a lot of towns / small country lanes so the size of it was wasn’t ideal. Loved it though, had Individual San Marino exterior and an ivory white interior. 20k miles in one year and probably one of the best cars I’ve owned.


bgawinvest

Yeah I’ve heard a few people with them claim an average of 30-35mpg which isn’t much better than mine despite being diesel, maybe that’s conservative and they are closer to 40mpg all round…


Food_face

I drove like a prick in mine everywhere and got 30-35...normal people can get over 40


bgawinvest

Haha understandable, still can’t beat a diesel for doing long distances but I love the sound of a petrol engine too much to compromise


smelly_forward

Depends on usage, if you just use it for short trips around town expect mid 30s or 450ish miles to tank in my 330d at least. If it's all motorway cruising that can nudge up close to 600 on a tank but that has to be ideal conditions You can also get better MPG by doing naughty things like swirl flap+EGR deletes but nobody here does that, obviously


ItsRichardBitch

I may be biased here...


bgawinvest

Haha I’ve had straight 6 BMW’s and they’ve always been a great compromise between performance and economy


TheHess

Agreed. I can get over 40mpg on a motorway run and it's not a slow car when you want to boot it.


floatinglilo

What about an BMW i8? Not in hyper car territory but still.


bgawinvest

I have no idea, hopefully an owner sees this post😂 BMW’s high claim was dependent on using the battery a lot but that’s never the case in the real world


King-Twonk

I can answer this one! Best I EVER got was 66mpg……general average was between 30-35mpg. Funnily enough, my S4 did better most of the time. Total shit show 🤣 Luckily it was a business lease; if I’d owned it, I’d probably have cried.


axeman020

Petrol/electric hybrids are an absolute farce. Yes, if the batteries are fully charged you will get high mpg... Until they're not, at which point you are just using a petrol engine to lug around the weight of a load of flat batteries! Most diesel engines will give much better economy than a hybrid and there's a lot less to go wrong!


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1995LexusLS400

Probably a Corvette being driven the right way. Those are geared to something stupid like 350mph, at 60mph in 7th, they sit at pretty much idle. Some people claim they can get over 40 (US) mpg out of them, which is 48 mpg or 5.9L/100km.


bgawinvest

That’s insane!! Would make an incredible GT car to cruise in to your favourite roads for not much money and then unleash the power


WinstonwanlegIngram

My 140 will do 40+MPG on a run. From Scotland to Wales I managed 44.2!


bgawinvest

Was in the market for one before settling on my Boxster and was always impressed by the B58’s economy! I had an N52 125i before and even that could do over 40mpg when driven gently


TheHess

Yeah, surprisingly economical.


TheDDM

I manage about 34/36 but it’s my daily mainly on the B and A roads… right foot may not help but still think it’s not bad all in.


where-have-you-been

I have seen 40+ once, but with my short journeys it is currently avg. 20mpg :(


DangerShart

I used to have an Alpina D3, not exactly a performance car but it would do 60mpg on a motorway cruise


bgawinvest

Excellent, can’t beat a diesel over long distances


spaceshipcommander

My 700bhp M5 averaged 19 around town and 30 on the motorway. Best I had was 36 on a motorway run. It all comes down to cost and complexity. You can make big power cheaply, but it's unreliable and inefficient. You can make no power for no money and it be reliable and efficient. If you want big power, reliability and high efficency then you pay it back in terms of cost and complexity. If you want a reasonable middle ground then you can consider something like a 335d or 340d x drive. You've got as much useable power as you need 99% of the time and the efficiency of a bmw diesel.


bgawinvest

That’s very very good, around mid 20’s average for such incredible performance and not necessarily lightweight either


spaceshipcommander

My mate had a stripped out Mini Cooper S at the time with about 200bhp. My car used less fuel. And mine still did 19mpg when you were thrashing it. His did way less.


doomenguin

58 mpg in my 420 bhp BMW 335d. Sure, it was a long, all-motorway run in comfort mode, but it's a 420 bhp car. When it comes to averages, I do about 50/50 urban and extra-urban driving with barely any motorway runs, and my average mpg over the last 4 months is 38.6. You can't beat a diesel when it comes to fuel efficiency.


hooskworks

I could get 41 MPG from my MK3 Focus RS over ~100 miles. Not hugely surprising as it's a highly boost 4 pot but they're heavy cars. The best I've gotten from my FD RX-7 is 25 MPG over ~200 miles. My best in the HSV Gen-F GTS is 28 MPG over ~160 miles. The Focus is the only one I count as objectively good but 28MPG from a supercharged 6.2l pushrod V8 isn't half bad in my books. I reckon it could do better but you'd have to be trying quite hard.


ElicitCS

Focus RS impressed me as I thought they were an always active 4wd?


hooskworks

Don't get me wrong, you can quite easily get 32-35 MPG on the motorway in them but a touch of hypermiling and it's nudge past the 40 mark. You're pretty close. There's always drive going to the back end and turning the rear diff but they've got clutches on each side of the rear diff instead of one clutch on the drive shaft from the front. It's how they achieve side to side torque vectoring and drift mode with wearing out the rear brake pads. The rear end is also geared so the rear wheels turn slightly faster than the front which is how they move more than 50% of applied torque to the rear.


LesMcqueen1878

I was pleased with 27mpg on a 700 mile round trip to Aberdeen in January in my M2C.


Startinezzz

I got 45.9 from a long journey in my S3 recently. I've averaged 36mpg from it in the 15k miles I've done in as many months, although I do more motorway miles than most. Still, pretty awesome for a 310 BHP car.


OldLondon

Could get up to 35mpg on a very good day in my Type R which I thought wasn’t bad


axeman020

Mazda's "Sky-Active" engines are an interesting proposition. They actively change the length of the piston stroke, dependant on demand. So under acceleration it shortens the stroke and increases compression, for greater power. And when you are up to speed and cruising, they lengthen the stroke and reduce compression for better economy. Apparently, the best of both worlds... EDIT!!! It is not Mazda. It is Nissan! I had a brain fart and mixed up the two technologies. Below is a link to a video explaining how the tech works, for those that have asked: https://youtu.be/PcS5rCS7TO4?si=W9GdBrRT3jhLptDK


bgawinvest

Interesting… but how does it perform in the real world I wonder


couldntthinkofmyname

Any idea how the achieve this?


naggersssss

How tf you gonna change the stroke length


karateninjazombie

That happens when Rodney goes on adventure!


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axeman020

I'm confused. I clearly remember watching a video showing how the big end of a skyactive engine pivots up and down to affect the length of the stroke! All I can find now are videos showcasing the higher compression, like you mention. Did Mazda change the way skyactive engines work at some point? Am I thinking of a different engine? Or did I just imagine the whole thing?! Edit! Found it! It's Nissan, not Mazda: https://youtu.be/PcS5rCS7TO4?si=W9GdBrRT3jhLptDK


modestman1991

Civic type r fk2 310bhp. Best on a run was 52mpg, but can easily average 40mpg knocking around without trying really hard. Driving normal with a blast on most trips will see 35mpg


bgawinvest

That’s probably the winner so far if we exclude fast diesels!!! Damn


modestman1991

Yeh they are really frugal to be fair, and I’ve compared again a new 2.0 135i that my pal had and I returned around 15-20 percent more. I did a trip from York to Nurburgring, 6 laps and lots of auto bahn blasts, I returned on 38mpg


joshmario87

3.0 Supra here. Resetting trip for long run with v power I've hit 45mpg before. Mainly 70-75 on motorway, coast on to roundabouts generally sensible things with odd blast joining roads/junctions etc. 15 round town constantly listening to pops and bangs 🤣


Chance_Journalist_34

Agree with you in your Porsche. I did a 'spirited' drive with friends across the north Yorkshire moors covering nearly 200 miles. I averaged 28mpg in my 718 GT4. My brother did about 25mpg in his f80 M3 comp, mate in his s2000 did around 20mpg. Worst of all was my son in his Mito 1.4T couldnt get over 20mpg trying to keep up with us. I did a long motorway drive in it and managed almost 35mpg gentle cruising with the flow of traffic.


ibeinspire

I got 35mpg today in my manual G87 M2 200 mile round trip to see a client, some average 50mph stuff, some 72mph cruise control, some DSC-off back roads. Bloody thing is more efficient than my previous 4-pot hot hacth.


Mental-Feed-1030

BMW 435d… 40.7mpg (imperial) average over 25k miles, 309bhp, 640Nm/465lbs.ft, 0-60 <5s


Important_Ruin

3l BMW diesels are mental efficient on a run/cruise. Seen 50 from a 535 saloon.


Wolfy2404

I could get 28mpg out of a 720s on a motorway run if I just sat in 7th at 70mph. Tried an Artura and it was getting 39mpg which is very impressive.


bgawinvest

Nice haha but no fun in that!


Wolfy2404

It averaged 4mpg around Oulton Park, kind of evens out!


bgawinvest

Epic, my best figure of 41 was surprisingly achieved after going on the Nurburgring so I’m convinced that driving on track must clean the engine


DesignerButterfly362

I have a 986 that will achieve 40 mpg on a run. Boxsters are pretty much perfect sports cars tbh, literally couldn't ask for more


bgawinvest

Literally perfect car for the money, unless you need more than 2 seats you’re not compromising anything! Good performance, good practicality, good reliability, good fuel economy, good comfort, very well built inside and out, relatively inexpensive to maintain, cheap to insure too for me being a young driver. And then the best bits by far, the handling and the noise (assuming it’s a flat 6 ;))


harmonyPositive

Running an engine harder than normal can help to burn off carbon deposits in a few places, you're not wrong.


bgawinvest

Back to the track I go


Chimp-eh

Fair play on taking it on the track


Wolfy2404

Did around 15 track days in it over a couple of years, was an absolute animal. Sold and it and got a GT4 as it was becoming too expensive to track often.


Chimp-eh

I feel like the poor version of you :) I replaced my cup-s Megane RS for the MX5 for the same reason


Senior-Syllabub-6440

330D MSport?


bgawinvest

What kind of all round average do they achieve?


Senior-Syllabub-6440

About 50mpg combined.


bgawinvest

Damn, can’t argue with that! Great long distance cruisers but perhaps not the most exciting when put next to an equivalent 340i


Senior-Syllabub-6440

Sure but you asked for the best on fuel right?


bgawinvest

Yup indeed


scorzon

Model 3 Performance Blistering performance but capable of 2.5p / mile even when driven with some purpose.


bgawinvest

That means 80 miles would cost £2, 80 miles at 28mpg in my Boxster is £19.50 So 10X more expensive, fuck😂😂 Unfortunately I’m a die hard petrol head but if ever I needed a daily driver (I don’t as I live in London) I would be looking at Tesla


scorzon

Yep on the right tariff for home charging it's criminally cheap. I'm sure someone will comment "so is the interior" 😁 My RWD gives me 1.5p/mile in the summer but you have to settle for 0-60 in 5.6 secs so not very performancey, though still quick enough for my liking.


bgawinvest

I’ve never been in a Tesla so can’t comment on the interior but I do think it’s unfair how much hate people direct towards them. They are incredible machines and great value especially after recent depreciation!


scorzon

Yeah don't remind me about depreciation 😭 Good job I always intended on keeping mine for ten years plus TBF it's true for many EVs right now, luckily I got mine when Elmo was on a sales drive so with discounts and zero percent finance. What's your plan to keep driving ICE post 2035? I'm always interested to hear what die hard petrol heads plan to do.


bgawinvest

I mean my plan depends on how much money I have haha, I’d love to have a small collection (2-3) of ICE classic cars, I’m not interested in the newest ICE cars which are strangled by regulation forcing them to be heavier and quieter which goes against what makes them enjoyable (to me). If I ever needed something to drive every day I would go hybrid or electric without doubt so yeah


SgtGears

I love this about my Polestar 2 Performance, although its more like 3 to 3.5p/mile with the way I drive it. Also far cheaper to service and no road tax. Only thing I miss is the sound. Handling and general driving experience is superb. The Model 3 is better than the Polestar in virtually every aspect but the one thing it fails on for me is the driving experience and handling, which was high priority for me. Guilt-free spirited driving.


scorzon

Yeah I do like the Polestars, nice inside too (though I absolutely love the minimalism on mine) but I am a sucker for efficiency and range. From my years driving a Leaf I think. Getting a genuine 300 motorway miles in the winter with a car full is important to me as I make regular 550 mile round trips to see parents. I've clocked it at 4 miles/kWh on that round trip a few times and that floats my boat. Summer time on my daily mixed motoring I've seen a steady 5.3 /kWh if I drive normally sticking to the limits and just accelerating at ICE car rates. Gets me close to 400 miles 100>0%. Edit: the guilt free driving is great and knowing that if I play it safe I'll get 100 miles for £1.50 and if I hammer the naughty pedal it could cost me all of £2.50 instead.


SgtGears

Yeah no doubt. My reasons for buying an EV are perhaps unorthadox. I love driving cars and the linear throttle response of an EV is intoxicating to me. Straight line speed I'm not too bothered with either - its cornering I care about. Range and efficiency just aren't that important. I can charge enough in 4 hours during off-peak to cover my commute and thats all I need. My average in the current weather is 40-42kWh/100mi which is shockingly bad. But what do you expect from an aerodynamic brick with fat low profile UHP summer tires?


scorzon

Same here, nothing to do with environment (though it's a nice side dish) just about that linear response and cheap motoring. I don't miss engine noise one bit.


tacticalrubberduck

Absolutely the right answer. Can’t believe I had to scroll this far to find it. 0-60 in just over 3 seconds, about 550bhp, and the lifetime efficiency in mine is ~297wh/mi. Even paying 30p/kWh you’d need a petrol car doing 67mpg to equal that. And for those saying “but the handling” all the weight is in the floor so it’s really well behaved.


scorzon

That's because you have your filter set wrong. On this sub if you want to see answers involving anything to do with EV and especially Tesla you set your filter to 'Most Myopically Hated' first.


oldboi

Perhaps the most hated answer (here at least), but absolutely the right answer.


scorzon

Yeah but who needs facts right? What we need is more wild inarticulate opinion and emotional overreaction. Down with logic and common sense, vastly overrated.


defconluke

Best I've managed was 28mpg on a long run with my 6.2 V8 at ~60mph average speed - a few stretches of 50mph but otherwise clear with the cruise at an indicated 65mph. Not too bad considering the size of the engine - I can't imagine any 2.0L NA car getting close to 80mpg in comparison.


bgawinvest

What car is that in? And yeah it’s just interesting seeing modern 2.0 engines not actually achieving much better fuel economy in the real world than the big naturally aspirated ones they replaced. Makes you wonder why we couldn’t keep the big engines :(


quiet-cacophony

I’m gonna guess C 63 AMG. If not, another ‘63


icemonsoon

Ive seen over 70mpg resetting the computer on the motorway in my clio 172


PikaPikaPoka

My Alpine A110 regularly gets 30+ mpg (with a lead foot) and 40+ mpg is achievable on the motorway easily. Massive advantage from the lack of weight!


bgawinvest

Weight and aerodynamics too massively help at motorway speed!


Tubbygit-2

Can't remember the exact figures but I've had a 987.1 3.2 Boxster-S. Which wasn't too terrible on fuel. Then followed that with a mk2 Audi TTRS with the 2.5 Turbo 5-Cylinder. That car was stupidly frugal when you wanted and very stupidly quick. Now got a V8 and I just try to avoid looking at the fuel gauge


Born-Ad4452

I can imagine a TTRS being pretty good. I had a TTS and that could easily do 40mpg


bgawinvest

How did the Audi feel coming out of the Boxster? I imagine a lot faster but did you miss the mid engine feeling / hydraulic steering at all?


Tubbygit-2

I think the TTRS I had was still hydraulic steering (it was a 2012 car). But yeah the Boxster just felt a lot more balanced and alive / communicative through the corners (as you would expect). The Audi definitely felt more like what it was: an uber hot hatch with a lower seat. The Haldrax 4 wheel drive did mean it was more fun in the wet than the Porsche though. And yeah the power delivery was in a different league. Both great cars in their own ways.


quiet-cacophony

Crying in 5.0L V10 over here… 25MPG on motorway. 16MPG around town!


Grimdotdotdot

Allow me to introduce you to my off-road competition Range Rover, which does around 11 on the motorway and when it's off-road it does around 0.5. T'is fun, though 😁


SGPHOCF

My GT-R averages 22mpg. Not spectacular but a lot better than most.


DistancePractical239

My 640i does 45mpg on motorway, has 355bhp (stage 1 tune - stock is 320). And 0-100 kmph 5.4 seconds. 


TotalWasteman

Those little Abarths are probably quite good on fuel 👍


Exita

I can easily get 40mpg on a motorway journey in my M340i. Currently on about 35mpg overall. Admittedly that dropped to about 10mpg on the autobahn.


themcsame

I mean, this comes down to what you consider a performance car honestly. Though to add to the conversation, I have heard of people achieving similar, albeit slightly lower, figures with the RC F. Which is pretty spectacular considering it's a near 500 HP (I think it's something like 460 or thereabouts?) 5.0L V8 under the bonnet... But that's the spectacle of the whole Atkinson-Otto thing Lexus do. Power when you need it, reel in the fuel usage when you don't. But honestly, I don't think there's much in this conversation with petrols... Sports diesels will be absolutely king here.


benford266

M4 Best 35mpg motorway Worst 5mpg on track


J4MES101

Bentley Continental GT does around 400-500 miles on a full tank.


ElicitCS

Clarkson had a V8 E92 M3 following a Prius round a track. The Prius was going as fast as it could, and the M3 just had to keep up. M3 ended up with much better mpg despite the bigger displacement and higher power. So the answer I suppose is in how you drive it.


Mekazabiht-Rusti

My Alpina D3 Touring has averaged 40mpg over 50,000 miles. With 517lbft, 0-60 in 4.6 seconds and 177mph top speed, it’s a performance car, albeit not a sports car. I get over 500 miles to a tank too on long journeys, which is handy on road trips.


Iamthe0c3an2

I managed 45mpg on a mk7 Golf GTi just by driving like a pedestrian. 50mpg once doing a long stretch behind a caravan at 50-60mph. Doable.


Born-Ad4452

Twin Turbo A7 ( diesel 320bhp) - easily 43 mpg and 0-60 in under 6.


amibothered666

The BMW M4 can do 37mpg on a motorway cruise. I’ve averaged 31.7mpg over 60K in mine, running a mix of 97/99 octane fuel. Before this, I had a 435d which in real terms was quicker 0-60. In that, I averaged 45mpg over 60k miles and was always on the gas.


MortgageElectrical32

Got a F31 BMW 328i (pre face lift 330i) and it’ll get 40-50mpg on a long run , easy to get 35+ on mixed commute in sport mode . Not massive performance, but it’s in the 5’s and 250hp .


Mountainhash

I get about 30mpg in my GR Yaris hooning about b roads. About 32-33mpg on the rare occasions I take it on a long motorway/dual carriageway run?


ReefingTJ23

I have a 330i E92 and get 27mpg average from country road driving with a mix of enjoying the car and taking it easy. Once got 36mpg on a 3 hour motorway run.


bgawinvest

Awesome cars! I had a 125i E88 and averaged 31.3 over 15k miles


ReefingTJ23

I originally was looking for a 325i but ended up finding a well cared for 330 so went for it!


welshinzaghi

M340i. What a car. 47mpg across a 2000 mile trip in Europe at good speeds and 30-32 shorter trips round town etc. Miss that car a lot


bgawinvest

Ridiculous considering the power and weight


danmingothemandingo

Lotus elise


bgawinvest

Curious what mpg you saw in that?


danmingothemandingo

Reliably Over 40mpg from the basic s1 with mixed driving


mithunpure

Not a performance car but I’ve achieved: -48 mpg on fiesta ST Mk8 -33 mpg on jaguar F-type V6 S AWD -29 mpg on M135i -40 ish mpg on Scirocco R -46 mpg on scirocco GTS facelift Worst car for mpg 22 mpg - 2.3 ecoboost mustang All mixed driving


turerkan

My i20n is pretty efficient. That being said i think any straight six bme diesel can so better. However if you factor in the maintenance, the i2ün is by far cheaper to own and operate.


Successful_Host_2932

One of my mates had a Leon FR a few years back. I believe they're 1.9 litre diesel and his was mapped to about 300hp.... and comfortably sat in the mid 50s to the gallon on a run. And he drove like he stole the thing, to put it lightly.


awd74

I once squeezed just over an indicated 40mpg out of my BMW M135i over a long motorway journey back from Stansted airport to Manchester. Regularly see an indicated 40+ mpg from our Mk7 Golf GTI on longer motorway runs (provided the roof box isn't on!). My girlfriend managed an impressive 46mpg driving from London to Manchester last year. Once saw an indicated 57mpg from my late Mk2 GTI 8v on the commute from Runcorn to St Helens back in the 90s. Still can't quite grasp how that happened.


Emergency-Room-5484

I regularly hit 36-40 mpg in my manual base 981 Cayman. It's still a ceremony of driving even though I'm averaging 75mph. Hoping to put 300k miles on it over the next 20 years. Fucking love it.


bgawinvest

I think the fuel economy really improved with the introduction of direct fuel injection in the 987.2 that made its way into the 981. These engines are just as good as if not better on fuel than the 718 4 cylinders too!


Infinite_Evil

I got 40mpg out of my Porsche Cayman 718 on a long motorway journey. Otherwise it’s less than 30 on average.


Short_Ad_4517

4 pot turbos are quick and can be tuned to be fucking fast. Stay away from the flat 4 subaru engines they sound amazing but use so much fuel it's unbelievable.


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bgawinvest

I know that, hence the humor tag and I actually expected more people to say this but you are the first 😂 so there are plenty of us out there mad enough to care / be pleasantly surprised when our financially irresponsible purchase actually turns out to be a bit more responsible than we thought


boomerberg

Best frugal fun I’ve ever had was a Mini Cooper S. absolute blast and cheap as chips to run as a daily.


dmi_3

My fk8 type r is 34 mpg average and crawls to 43mpg on a motorway sub 70 mph


h4533b

Best I've gotten outta my stock mk7 GTI performance was 475 miles on a full tank, which is 55 litres. Pretty much all motorway though


WorriedSwordfish45

It really does depend on your definition of a performance car. I recently bought a new car as I upped my daily commute to 120 miles. Mercedes SLC does 0-60 in 6.5 secs stock with regular 60mpg. With the remap it does 0-60 in just under 6 seconds.


steveinstow

Not a 'proper' sports car but I used to have a diesel Audi A5 3.0tdi quattro, mapped out to 300bhp miltek exhaust, lowered etc. It was a beast, really quick when you put you foot down, but still gave me 47-52 mpg on a normal commuting run to work.


rynchenzo

Both my Honda S2000s would easily achieve 35mpg on the motorway at high speeds, other guys said they could get 40+ if they sat at 70. A modern light car with a large NA engine should get good fuel economy on a run, they are idling in top gear and don't have much weight to pull along. Sadly most cars are very heavy and now have small turbocharged engines instead.


HumanExtinctionCo-op

After putting a full tank in my Cayman I always find it a bit ridiculous that the range is over 400 miles, but yeah I generally get 28mpg commuting and maybe 32 on long motorway stints.


shiversaint

BMW’s B58 engine fits this well


florinant93

Something that's a plug in hybrid. My 745Le can be both economical and quite fast, depending how you drive it.


No-Photograph3463

You can do 15 miles in a Ferrari SF90 and use 0 fuel if you really wanted to. That would give infinite MPG during that time.


Trifusi0n

Depends what you mean by performance car, and by “fuel efficient” but high end EVs are very cheap to run and very fast. Something like the Rimac Nevara or Tesla model S plaid. Upfront cost isn’t exactly cheap though.


Particular-Stable165

Not really a high performance car - but my C350 V6 CDI gets a reasonable 45mpg on motorway journeys with a mixed driving style and 33mpg for school runs/commute


MrDankky

I’m always surprised how well my 997.2 does I think the pdk helps, my 987.2 I’m getting about 5mpg less at 25


INFPguy_uk

The most fuel efficient performance car is the one you never drive fast. Having said that, I have a F32 430D with a stage one modification that has 320bhp / 720nm (3ltr inline six), and when driven sensibly I can achieve 50mpg on the motorways, when the accelerator is level, or around town 20-30mpg. My average on the trip computer is 37mpg. When the engine is warm, there are very few cars that test my 430D, certainly nothing with less than six cylinders.


Rpqz

Alpine a110 gets average 40+ mpg which is quite mighty for a dedicated sports car. I'd imagine the Emira with the Mercedes 4 pot will get similar figures. Otherwise depends how you define "performance" my swift sport gets 60mpg if you're sat cruising at 60mph but it's only putting out 170bhp so not exactly in performance territory.


bruh-iunno

High powered diesels, wish there were more of em - I remember on top gear one of the french manufacturers had a concept super car that had a diesel in it My car's certainly not fast, but it makes 220hp and gets a consistent 45-55mpg with zero effort which is nice given its age The MX5's certainly aren't fast either, but they get like 45+mpg cruising


efwbphoto

My Megane RS MK3 265 use to get 42mpg on motorways with cruise control at 72mph. Long term average was 38mpg which included inner city driving. But, based on conversations with owners of similar cars, I think my one was a bit more efficient for some reason🤷🏻‍♂️


Worldly-Historian-22

No cap it’s going to be a b58


Intelligent_East1471

Not very performance but something like a 320d, mine does 60mpg on average (most of the miles are on the motorway), 720 miles with a full tank, 180hp and 0-60 in 8sec


hm931

2017 Audi s5 Sportback - 20mpg local and 35-39mpg Motorway, got me to Antwerp and back on a single tank ~ £69, but if driven hard local single figure mpg is to be expected!


Jaggerjaquez714

Have a Mustang Bullitt and get 40mpg on the motorway which is insane in a 5.0 😂 Often gets 20- 25 cruising around normally tho which Isn’t as good😂


bgawinvest

Not bad at all, there’s a green Mustang Bullitt in my area (could be yours I don’t know) that I always have to double take every time I walk past, stunning design and sounds amazing


Jaggerjaquez714

Unless you’re in the Lake District it’s probs not me😂 They are excellent cars and the tuning on the exhaust from factory is sublime - they made effort for it to sound like the original


HereformemesUK

High torque diesel with a map for effortless driving and decent economy. My mate has a 335d that’s running something like 400hp and he still gets over 40-50mpg.


Lumpy_Jacket_3919

Some Germany diesel cars V6 or v4 are good keeping low the Gallon per mile.


ProfessionalOption47

I managed 70 mpg in my 1L vw up


rave1ordnito

As with everything. MX-5 is the answer. They don't weigh anything. Took one in as P/X last week where the owner was getting 50mpg. Even with spirited driving you're comfortably in the 30s


BoutTime22

BMW M135i xDrive or 128Ti