I used to have a 2008 Z4MR, then leased a 2011 Z4 35is (still have it), but just bought a 2007 Z4MC. Here's my take: E85/86 M cars feel raw and exciting to me--classic sports car. The E89 is more refined, easier to drive around town (especially a 35is or a 35i with a JB4), more comfortable, and generates a lot of compliments, but at the end of the day, I missed that connection to the driving experience that the Z4M gave me. Maybe it's because of the DCT, but I think it's more than that. Although I will say, DCT has grown on me, and my next car will likely have it... For now, my E89 sits in the garage while I have fun with my E86