How Different is the C63 Sedan's Widebody vs Standard C-Class?
There will be no mistake that it's a C63. The front hood is more aggressive as well:
Coupe = flared front fenders are 2.51 inches wider and rear fenders are 2.59 inches wider than the standard C205 body. The Coupe's rear track is wider than the sedan in order to accommodate a unique rear suspension/diff setup that's shared with the E63 Sedan. The hood is also lengthened by 2.4 inches.
The C63 Coupe only shares the doors, roof, and trunk with the standard C205 body - all other body panels are unique to AMG.


