no question...if you are deciding between c63 or m3 then you play in a game that most of us can only hate on...
However - the c63 front end looks jacked up but the interior is AWESOME when compared to the m3. if i had to put my $$ down, i agree with an earlier post and grab a GTR and smoke both these cars.
2013 E93 M3 6MT
2007 N54 E93 Stage 2 Dinan | Diana CAI | Autobahn Exotics Exhaust | FOOSE Speed 19's (sold)
2011 Jetta TDi | Daily Driver
2007 Tacoma | Dog Hauler