Quote Originally Posted by EJ25RUN
Check the displacement difference. And Torque it is important...but the higher you go in revs......the lower it gets.

And this 4.0 liter revs to 8,300 RPM!!!! I mean really.

its great...but..im not a fan of the motor in the m3 either.

the RS4 v8 can go to 8400.. But its power is peaked @ 7800