Re: turning the M coupe into a track car...need advice
It probably won't be faster than a similarly sorted M3, especially not one that's ALREADY sorted, but it's a track car, not a race car, so does it matter which one is faster? When you've got your Coupe sorted, it won't be slower than the M3 either. The biggest problem with building a Coupe is the lack of a well-known formula for the Z3 chassis compared to the E36. There are still lots of schools of thought with how to really make them fast.
But the important thing is that I don't think you'll be destroying the car you fell in love with. Mine (a Z3 Coupe I bought used) is a race-only car and I still feel the same way about it that I felt about the M Coupe I bought in 1998.
Really, my only regret about having a track-only Coupe is that when I see Coupe on my daily commute (no Coupe for the street), the Coupe driver doesn't see me as a member of "the club."--
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