For the money, the 335i Coupe with mild mods is the best value. I owed a 335i coupe with a KW V1 suspension, short shifter, and it was extremely fun to drive. You can punch it to 100MPH, go on off-ramps in a spirited manner etc. Loved it. Of course after driving the M3, it's just a better car all-around and has serious performance out of the box.
However, if driving habits were severely limited to 100 below speeds and no track time, a new 335i would sound pretty good.
AWE NR | SWIFT SR| PAGID RS29 | CANFlap | 6MT