a known fact that cars with factory turbo's are ALWAYS easier to mod for power then n/a's. it's a common sense answer i gave, and one any enthusiast would agree with. now i'm only talking about power- nothing else. i know the m3 will be better as far as suspension/styling/and other factors go. there are 335's already that are making over 400whp from under $2500 in mods- and they just got started. the turbo's haven't even been upgraded yet. as far as price/performance goes- bmw has made a grave choice turbo'ng the the 335 and not the m3. i think it'll rip into their m3 sales big time. and an m3 that is redlining that high n/a will not be turbo friendly.
We didn't say anything about EASY:wink: you said "more potential". A larger engine will almost always have more potential. Also If they can get 500whp out of an S2000 engine turbo'd I'm sure they can get way more than that out of the new M3. Modding a new 335 to me isn't cost effective if you lose your warranty in the process and something goes wrong that isn't mod related and your warranty is gone. BMW is really bad about that not wanting to cover stuff:frown: