MT says stock '11 M3 0-60 at 4.1 sec (12.6 qm), '13 RS5 was 4.3 sec (12.8 qm),'11 CTS-V was 4.0 (
http://www.motortrend.com/roadtests/...n/viewall.html) ("But the M3 is still the most sharply focused driver's car of this bunch, a scalpel among sledgehammers.")