Different outfits use different methodologies for acceleration testing.
For example, C&D normalizes their results to account for differing weather conditions during testing.
http://www.caranddriver.com/features...braking-page-2
C&D, MT, R&T use rollout, Automobile and Edmunds do not:
http://forums.anandtech.com/showthread.php?t=2009715
Due to these differences, one should only compare 0-60 times with others from the same magazine, group, site, etc.