Originally Posted by kardboard
The Alpina is something more than just a 335d though. The motor is a reworked N55 (made to have 2 turbos), and this one like OP said can be ordered with a LSD. Add all he Alpina stuff like trim, seats, dash, wheels, quad exhaust and this is much more than a 335d.
I think you are referring to the B3, not the D3.