Lot666 said: "I wasn't aware that the US Tour production was different from the London version. I saw the show at NY City Center and loved it; which version did I see?"
The first run in Toronto was, I believe, the only one in North America to use the full London package. The subsequent City Center and "Tour" (closed after one stop) both were scaled down, but were certainly based on the London/Toronto designs. I didn't see those cut down versions, but I think I remember hearing things like the car crashing into the pit were removed while the show otherwise looked the same.