Originally Posted by drob23
I couldn't tell, but does this Alpina offer a LSD? It looks beastly, wonder about the cost.
No they don't.
They did on the previous E9x model, where the LSD was available as an option; and the B3 GT3 was equipped with it as a standard.
Unfortunately they seemed to have abandoned this - maybe due to pressure from BMW as they may consider it as an M3-only feature that will serve as a way to differentiate the B3 from the future M3 (which will have a very similar engine setup as it seems).