What HP does your M3 put out? 370z is known to run very very rich and adding a few breathing bolt ons (intake and exhuast) has seen an increase of 20+HP in the States, putting it near 350HP
As for 350z vs 370z, I'll let you know around March time hopefully
Yep beavis is right, 343bhp. When BMW brought out the new M3 they jumped straight up from 343 to 400+, an increase of nearly 60 bhp is going to be very noticeable and makes it very attractive to E46 owners etc. I just feel that going from 313 to 329 to not exactly gonna have hordes of 350z owners dying to get into one. I appreciate its a more modern car and things like the rev matching gubbins and it being lighter and smaller will probably make more of an effect on performance but as they say, BHP sells cars......i think that the 370 is probably more attractive to non 350z owners as I can't get my head round why anyone would pay £15-£20k plus their zed for a 370z???