Originally Posted by jaybird124
Why aren't LSD standard or at least apart of a package on non M's? What gives? Goes against the whole 'Ultimate Driving Machine' when you can get them on an Infiniti.
The reasoning differs depending on who you ask. I believe BMW's stance was it weighs too much? Then they threw an e-diff on post 3/08 builds and said "that's good".
Some people will say it's so that the track performance gap stays solid on the M3 vs the 335. I dunno....
I think it's because they're pinching pennies. But that's just my personal opinion.