Originally Posted by jtvr4
I took average prices, which aren't out of this world:
Intercooled S/C $15k
Suspension $3k (KW V3 but you also need camber plates at the very least)
Track wheels+tires $2k
BBK F+R $6k
Stock M3 brakes with upgraded pads will be ok for mid-speed tracks, but not on tracks like Spa which are very heavy on the brakes!
But the sky's the limit, really. Just have a look at the track builds in the sponsor's showcase subforum. The amount of modding for a proper track build is not so different for the M3 vs 335i.
Although I agree that out of the box the M3 is better suited for the track. N54 needs a huge amount of cooling. Some prefer NA over FI on a track. Current tunes for the N54 allow for very linear throttle response though. But don't forget about the higher running costs for the M3. All replacement parts have the //M tax written all over them.
Hmm, what were we arguing about again?