I'm actually having a similar dilemma. (Even though I commented in this exact thread to supercharge. I'm very indecisive)
I have an 09 with 45k Miles. I paid off the loan about 2 years ago so the title is clear. I want to wait for the new M3, M4, M2 and possibly the new C63 AMG to decide on which one to get into.
This will probably be 3 years before all those options are available.
My dilemma is should I buy a 13 ZCP M3 coupe, and leave her stock (aside for exhaust, possibly tune) Or should I spend that money on a nice suspension setup and possibly VT1 SC. (I already have Eis Sport, HRE wheels and Brembo BBK)
Tough Decision. Oh I have DCT, and I'd move to a 6MT.
What would you guys do?