When I asked about using Euro Headlights (either here or Bimmerfest, can't remember). Someone told me that there was some reason why the US cars couldn't have Euro headlights. It wasn't because of the reflector but something to do with the projection of the lights.
EDIT: Here's the thread I posted:
http://www.1addicts.com/forums/showthread.php?t=1104
I guess you CAN use them :iono: Maybe I should pick up a set while I'm doing ED so I don't have to pay for shipping.