Lead, follow, or get the hell out of my way
Drives: 2010 X3, 2013 RS5
Join Date: Mar 2008
Location: Montréal, oh Canada
that's kind of a hard question. The M3 will be a better track machine for sure, the 335 will rival it for speed and will be more comfortable.
so I'd say, if you intend on tracking often, M3
If you wanna cruise around and enjoy some power, 335