If there’s one thing you need to know about automotive dynamometers, it’s that no two are likely to ever return the same number. No matter how closely calibrated, if you run the same car on two separate dynos, you’re going to get different output figures. Still, the variations aren’t typically huge—which is why European Auto Source’s dyno pull with a 2015 BMW M3 is so impressive.

AS strapped an M3 to its dyno and recorded an absurd 424 horsepower and 426 lb-ft of torque—at the wheels. BMW claims that the M3 produces 425 horsepower and 406 lb-ft at the crank. Accounting for the typical 15 percent driveline losses from friction, etc., this means the 2015 M3 is really putting down something in the neighborhood of 480 horsepower and 480 lb-ft of torque at the crank. Assuming the M3 used for this dyno pull is real, that’s awesome news for future owners of the M3 and its two-door sibling, the M4.

Full article and video - HERE

 

That exhaust note. Nothing else is as symphonic as turbo inline six.

 

I wanna see more pics of the E30 M3 hiding in the background.

Glad BMW went back to the I-6 for the M3.

 

Die Deutschen spielen nicht herum!

 

110% agree. While the V8 wasn't a bad engine, a twin turbo inline 6 just suits the car better in performance and heritage.

 

*doesn't

 

*Single. The M3 should have an N55, without question.

 

am I the only one that thinks it sounds kinda... bland?

needs cat delete, I bet it'd sounds way better without cats...

 

I like the M3 but I love the M5!!!

 

Whoops that's what I meant. Typed too fast

 

^Absolutely. I hope this BMW/Toyota partnership will eventually result in Toyota once again making RWD sedans with I6 engines. My 1JZ is frickin' glorious but it's heavy, and the JZX100 chassis is flexible.

 

dynojet so that's a good start. the pull took quite a while though, so that makes me think its a 4th or 5th gear pull that tends to inflate values a bit. otoh, 91 octane will hurt power.