Definitely the Porsche. Having driven the 2010 Carrera 4S, it is unbelievable piece of machinery. It's also much more reliable than my M3. The sound, and the way it uses it's power is also amazing (m3 has the same). I mean it is two cylinders less, but bloody hell it goes.
The Carrera also handles like no other, I'm not to sure what car can take turns like the Carrera in it's price range.
M3.e90 JZB blacked out.coded