The shot of the grill in this thread reminds me of the '73 Grand Prix or the '77, except for the M3 slats being horizontal.
http://midsizebowties.net/pontiac-gr...ecs-1973-1977/ Will have to see the M3 in person to see if the grill looks as ugly and cheap as the ones on the 330 and 340. Congrats to bimmerfile who saw the resemblance of the concept car to a '71 Grand Prix (posted in the G20 forum).