I would buy it if I had that amount of cash. Maybe its just me but I have always been absolutely enthralled by the s85 engine and the thought of it in a m3 was always just a dream. A stroker 600 plus hp version in a 3400 pound car is ferrari enzo fast which would be extremely cool in an m3.
I hate the wide-body kit and the wheels but that is easy enough to fix.
Considering the GtS m3 was 150k or so, this is not really a bad buy