BMW Z4 E89 - I was actually amazed how they managed to make it look great - after not so great previous Z4 and Z3. Very sporty, looks even better than new Audi TT.
M3 E46 CSL - actually looks kinda normal, doesn't it? But everything is so perfectly balanced in it - the proportions, the wheels, everything!
M1 - only 400 road versions were made, very unusual BMW - for this company, thats what I like about it.
Nazca C2 - improved version of Nazca M12, BMW supercar prototype from 1991.
M8 - 1990 prototype of an 8 series (looking completly diffrent than the base car), love it!