BMW M240i v AMG A45 v Audi RS3 v Golf R: DYNO DRAG RACE

It's time for an almighty hot hatch dyno test!

We've got our hands on four of the most popular hot hatches you can buy in 2023, and we're about to find out simply how accurate the producers' performance figures remain in reality!

So let's look at the line-up. First up it's the Volkswagen Golf R, which is powered by a 2-litre 4-cylinder turbo engine that can apparently put down 320hp and 420Nm of torque. Next up it's the BMW, with a 3-litre straight-six turbo under the bonnet that's good for 374hp and 500Nm.

Third in the line-up is the Audi RS3 saloon. It comes with a remarkable 2.5-litre 5-cylinder turbo, which benefits 400hp and 500Nm. And finally, we have the most effective automobile in the line-up, the AMG A45 S. It's geared up with a 2-litre 4-cylinder turbo which needs to be producing 421hp and 500Nm.

Will any automobiles outshine their declared figures? Or even worse, will any underperform?! Stick with Mat for this dyno drag race to see on your own!

Mega hot hatch drag race:

… … … … … … … … … … … … … … … … … … … … … … … … … … … Thanks to ONYX Performance for hosting us: Offer: 10% off all

Dyno Remaps for all of 2023 Discount rate code

: Automobile Wow10 Thanks to AWM Weighing Solutions for
joining us: Thanks to Paul The Tech Giant for bringing his A45S Thanks to Zahn for bringing his RS3 Thanks to Jas for bringing his M240i


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63 responses to “BMW M240i v AMG A45 v Audi RS3 v Golf R: DYNO DRAG RACE”

  1. Yashuop Avatar
    Yashuop

    Raise your hand if you’ve been watching carwow for a long time🤚

    1. Lesego Mojelele Avatar
      Lesego Mojelele

      👋

    2. Jordan Butler Avatar
      Jordan Butler

      Since y’all started the channel 🫡

    3. Johnny Rojas Avatar
      Johnny Rojas

      🤲🏿

    4. Senzo Stock Avatar
      Senzo Stock

      🤚

  2. T-Bag Avatar
    T-Bag

    This is a great little series. Keep these coming.

    1. Andrew Watson Avatar
      Andrew Watson

      I’d be interested to know why their torque figures were so much higher than their power in matching the manufacturers claims.

  3. Anirudh Narendran Avatar
    Anirudh Narendran

    im ngl this is prolly one of the best inclusions on carwow other than the drag races fr!

    1. Jayden Andrews Avatar
      Jayden Andrews

      Facts💯

    2. Kapten Avatar
      Kapten

      @Jayden Andrews Should have shown WHP too instead only calculated crank hp.
      So would have seen which car puts most power to the ground and how much power is lost

  4. The Happy Guy Avatar
    The Happy Guy

    You have to do this with that Merc A35 sometime. That was just bonkers quick in that drag race despite the owner saying it was stock.

    1. Elias Tarabay Avatar
      Elias Tarabay

      @Da MeepingMadMon if you know anything about cars you would know adding a wing creates more drag and makes the car slower. They say it was never that fast because previously they featured one with a wing, this one didn’t

    2. Da MeepingMadMon Avatar
      Da MeepingMadMon

      @Elias Tarabay You really think a wing would make that much of a difference? I bet you think you know a lot about cars huh? hahahah

    3. Bl1tzTurk Avatar
      Bl1tzTurk

      The hate still going on!!

    4. M135i Avatar
      M135i

      @Hula Chi doesnt yaris gr do sub 13 second quarter mile?

    5. Andrey Avatar
      Andrey

      @Kunal More I wouldn’t say it’s a piece of crap, but it’s not deserving of the Amg badge. I would give the C43 a pass

  5. Aqrizp Avatar
    Aqrizp

    def need to get another A45S on the dyno

    1. Bones Avatar
      Bones

      @Introgamer14 I knew the car had an issue, was just trying to incite hate

    2. Marc Mawson Avatar
      Marc Mawson

      @Anonymous Bullet and I still know which one I’d rather have on my drive

    3. Lloyd Bonafide Avatar
      Lloyd Bonafide

      @Mikal Dale  nvm i thought it was melted paint lmao. Yeah its road grime

    4. Marc Mawson Avatar
      Marc Mawson

      @Lloyd Bonafide it’s the UK and it’s winter, my car looks awful, and it gets like that about a day after I wash it, roll on spring and summer.

    5. Marc Mawson Avatar
      Marc Mawson

      @Lloyd Bonafide if you look closely it looks surprisingly like road grime and someone more than likely the owner has lent on it, the pattern of the grime almost matches the owners legs. Bright cars in the UK look like that in winter it’s normal, salt, dirt and the crap from the substandard tarmac they use here, honestly the UK roads are all fucked because the councils never repair the potholes.

  6. Qhamokuhle Shibane Avatar
    Qhamokuhle Shibane

    Carwow giving us fresh and entertaining content, dyno drags 👏 👌

  7. THEJOKERBOOKS Avatar
    THEJOKERBOOKS

    It would also be interesting to see a video of old cars to see how much horse power they still have after many years.

    1. Lone Wolf Avatar
      Lone Wolf

      @Mark A i think it shouldve kept most of its power. ive seen bmw m5 being tested and had lost like 5 to 10 hp ,main reason injection system.

    2. sebastian jakobsen Avatar
      sebastian jakobsen

      yeah i would like to know that too

    3. Chris Hart Avatar
      Chris Hart

      @Razor Ramon could just rebuild the engine to new spec.

    4. Kers225 ABK Avatar
      Kers225 ABK

      Do the horses run away?

    5. Sheila Morrison Avatar
      Sheila Morrison

      @Tommy Hanqi Dong LOL….They really dont. Its like 1-3%

  8. roespeloes Avatar
    roespeloes

    Something most be wrong with this A45S. We never had one on the dyno that was below the claimed HP 😮

  9. Denzel Holness Avatar
    Denzel Holness

    I don’t feel that bad about the M240i, once I remember it’s meant to compete against the S3 and A35

    1. DeeJay Avatar
      DeeJay

      @Anonymous Bullet Nah the M2 aint a level above the rs3 they are direct competitors..all audi’s “rs” cars are direct competitors of BMW’s “M” cars

    2. DeeJay Avatar
      DeeJay

      @Muhamad Aiman False BMW’s ///M models are their competitors not their “m-lite”

    3. Automotive_Peight Avatar
      Automotive_Peight

      No the competition of the A35 and S3, is the 135i… those have similar power figures. Or would you say it competes with the A250 or so 😅 BMW just has something in between the 35i and actual M

    4. Automotive_Peight Avatar
      Automotive_Peight

      BMW fanboys like to believe that 😅 They need 370hp to beat 310hp cars 😂 not to mention 370hp out of a 3L 6cyl… really impressive

    5. Automotive_Peight Avatar
      Automotive_Peight

      It seams like the BMW fanboys are on point again. They brag about being faster, but compare a 370hp car to 310ish hp cars… while there literally is a M135i that has similar power to the A35 and S3.
      But I’m used to see the “logic” of BMW fanboys on Carwow videos 😅
      With the hp and torque, the M240i would compare more to the A45. And the M2 to the A45s. Audi doesn’t have anything between the S3 and RS3.

  10. NZsarge1 Avatar
    NZsarge1

    I’d be keen to see another A45S on the dyno for confirmation be that’s way off, the other three though were impressive 👍🏼

    1. ADDY Green Avatar
      ADDY Green

      Yes, maybe there is some problem with the engine. It would be a huge risk for Mercedes to claim wrong horse power numbers.

    2. E Reinaldy Avatar
      E Reinaldy

      @ADDY Green agree. merc can’t possibly make a fatal mistake in CLAIM, the difference between actual and dyno is too much, there could be an error and maybe wrong MODE during testing.

    3. Sarp Turan Avatar
      Sarp Turan

      The owner just commented, apparently the cooling pump was faulty, which has bogged down the performance

    4. Michael Gathemia Avatar
      Michael Gathemia

      I was team mercedes but of late this video just proves the point they have lost the German touch it came to be known for. Now am on the Audi side.

  11. Josephious Brosif Avatar
    Josephious Brosif

    Love these kind of videos to add to the drag races!

  12. Kim Not King Avatar
    Kim Not King

    Now we need to know how the A35 was so fast on stock

    1. Robotic Venom Avatar
      Robotic Venom

      he was TUNED you idiot. don’t blindly believe the owner, it was tuned wether he knew it or not

    2. Andrey Avatar
      Andrey

      It was obviously tuned. It performed in line with a tune only A35/CLA35.
      I don’t buy for a second that it was stock

    3. Russell Donaldson Avatar
      Russell Donaldson

      @Andrey i know for a fact it was tuned. There is one in the town I live and every morning the A44/A34 in Oxford, Mexico 😂 it doesn’t even get its nose in front
      Everyday for nearly a year. We now wave and laugh 😂

  13. JJ Avatar
    JJ

    One thing I like with this video Matt went straight to the point 👍

  14. Eugene Avatar
    Eugene

    I quite like this series, and especially comparing the same league along with the owner’s interaction!

  15. Milind Sinha Avatar
    Milind Sinha

    Keep doing these dyno races, lot of fun to watch and for sure has very useful real info

  16. Connor Hammond Avatar
    Connor Hammond

    Love the series. I’ve got to recommend placing a mic near the exhausts when dynoing. Would be nice to hear them rev up.
    Go the Golf!

  17. The Tech Giant Avatar
    The Tech Giant

    I’m the owner of the AMG A45S. It turns out that after investigation by Mercedes that the car had a faulty cooling pump, which has just been changed and car is being tested by the AMG experts. fingers crossed full power will be restored!
    But despite the disappointing results, it was a great day and was a pleasure to meet Mat, the team and the other car owners!
    Fingers crossed i can bring the car back to another CARWOW video in the future, running the full power!

    1. fzr1000 Avatar
      fzr1000

      @Vlad Mihai  nope, B58 is not an S58. It has plastic oil pump parts, inferior fueling, weaker internals..basically tapped out at 600 hp. Sure you can push it higher but they don’t last

    2. fzr1000 Avatar
      fzr1000

      B58 also has a history of oil consumption

    3. fzr1000 Avatar
      fzr1000

      @dodoz44  actually, no it isnt…it loses to RS3 in 1/4 mile as well. Face reality guys! 380 whp is real. Get your own car tested and see for yourself! Until then it’s bench racing

    4. Alex Susu Avatar
      Alex Susu

      “wait a minute, I know this guy” – ah yes, the tech giant, in an a class. You so big mate that the horses of the a45 got scared 😅😅

    5. Nougan Gamer Avatar
      Nougan Gamer

      I’m more of an Audi person, but I love your energy, honesty & generally a good sport. Would love to see you bring your fixed A45S back in future video!

  18. James Heales Avatar
    James Heales

    Like these videos, I also think it would be good to see what BHP modified cars are putting out against what their owners claim 👀 😂 would be very interesting

  19. Richard Tortorici Avatar
    Richard Tortorici

    Please talk about wheel HP! This is what really matters! The “adjustment factors” used are unlikely to be very accurate. Either way, keep it up! I love watching dyno runs and the weight of cars!

    1. ukdub Avatar
      ukdub

      Only fair way to do it 👍

    2. Niels de Bakker Avatar
      Niels de Bakker

      You can’t use wheel hp to compare to the factory crank numbers… But the could give both.

    3. Copper Key Racing Avatar
      Copper Key Racing

      That’s the issue with European dynos, they do too much of the conversion and thinking for you. Therefore, when the cars come to the US they are all considered underrated by our tests, done by our regulatory board in the US, which is SAE. All the cars in the video have abour 15-20% more than they are suppose to. If you do a proper calibration of our dynos which is based on the actual and real definition of hp, our dynojet is correct, and that’s the one that SAE uses, and it’s to the wheels, which SAE then calculates the crank hp for the manufacture. Europe and their dynomax is forcing all cars to have more hp than they did prior to 2006, which is when SAE came in and tried to put a stop to the overrated and underrated cars. In 2006, most Japanese cars turned out to be overrated and had to be rerated down about 4%, while the European cars were all underrated and nothing was done because you got more than you asked/paid for. Now-a-days everything has gone underrated, even the Japanese cars… why, because they have to compete with the underrated european cars. Completely confuses people. Why have ratings, if they mean nothing. If drivetrain losses are 14% FWD, 17% RWD, and 20% AWD… but the car is underrated by 15-20%, what’s the point in trying to explain to people that there are losses, but then the extra power basically cancels out the losses. Europe is winning this battle of what is correct, not because science and physics says so, but because they are wrong in the extra power direction. It’s like having more money, and you are correct not because it’s the fact, but because you have more money… and that’s a fact. FREAKIN JUST RATE THE DAMN CAR CORRECTLY! IF YOU NEED A PHYSICS BOOK, GO GET ONE!

  20. Willem De Beer Avatar
    Willem De Beer

    Would love to see a drag race between all these cars after they have been on the dyno. To see how the differences on the dyno carries over…

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