BMW M3 Owner's Manual page 226

Dimensions
Coupe
1 Vehicle width, with exterior mirrors:
77.2 in/1,961 mm
2 Vehicle height: 54.9 in/1,395 mm
Vehicle height, 335is: 54.1 in/1,375 mm
3 Vehicle width, without exterior mirrors:
70.2 in/1,782 mm
Smallest turning circle dia.: 36.1 ft/11.0 m, with xDrive: 38.7 ft/11.8 m.
Online Edition for Part no. 01402918638 - © 02/13 BMW AG
Technical data
4 Wheelbase: 108.7 in/2,760 mm
5 Vehicle length: 181.9 in/4,620 mm
Reference
225