The M3 in my opinion is one of the best balanced cars in the game straight out of the box, I know that not many cars can stand up to an M3 in a race, except for the amuse R1, GT1 (which I dont consider out of the box). I would really like to see, someone try to beat me with an old stock Datsun or RX7 on Infineon.
Oh and dont forget to mention the M3 CSL.
Oh and dont forget to mention the M3 CSL.