McGard (search for Car | BMW | '77-'02):
Tried and proven on my
E30 - I've still got my rims! The key now has a sleeve to prevent dents in
your rim when it tumbles off the lug. McGard is recommended and sold by Tire
Rack.
BMP looks like they sell McGard as well:
Maybe more expensive than
TireRack, but check P/N's to be sure.
BMW Style 1 (or here):
Looks functional, but not
I'm not sure how unique the keys are.
BMW Style 2:
Too expensive and complicated
for my tastes.
Bavarian Autosport (click on wheels & tires | wheel locks on the left navigation bar):
I'm getting these because
they look stock with the silver or black caps on. The price is in the middle
of everything else and the key seems secure and won't fall off easily.
Griot's special lug sockets:
Buying new chromed lugs?
Keep them scar-free with these special plastic-coated metric sockets.