i have seen few Z4s in Queens NY, 2 Weeks ago i saw White 2003 with beige Top, i saw another black Z4 in kew gardens queens. last weekend saw another z4 uin Lincoln Tunnel while i was going to jersey. never waved to any one. they might dont wave back so i dont bother any one of,but this time i will wave and lets see what happens (Alien looks or Human looks) LOL