[wjones14]

I come from a background of U.S. V8 manual RWD cars - Mustangs, Corvette, Camaro - all of which come with a mechanical LSD standard, aka "posi" rear end. So I have no experience with an e-Diff, and to be honest, am somewhat concerned about it since I track my car once per year or so.

For the record, I don't do burnouts, though I will shift hard into 2nd gear occasionally with my Mustang just to break the rear loose. Even with the Traction Control on, this will always leave two fat tire patches on the road, 10 feet long or so. (With TC off, the patches are much longer than 10 feet.)

My question is about the e-Diff in the M235i. If you do a burnout, will it leave two tire patches or one? Does it matter if you are in Comfort, Sport, or Sport+ mode?