The render looks like a progression toward something similar to the C63.
I think the real thing will be more bull-nosed like it's bigger brothers now out.
2011 1 Series M Coupe VO M3 vs 1M Comparo Review
2011 M3 E90 DCT ZCP (sold) * 2010 335i Sedan (sold)
2005 M3 Convertible (sold) * 2003 325i Sedan (sold)