Watching the Fifth gear review of the 320Si, it blows my mind that BMW NA refuses to sell 4 cyl. models here in the U.S. The 4 cyl's. are just as good as their world renowned I6 engines, and most certainly it wouldn't hurt to pick up a few or so thousand more customers for the 3er. As long as the engines are top notch I don't really see why Americans wouldn't fork over the cash.