No LBC - Meaningless trivia question

While sitting in traffic on the way to work the other day, I played a little
game...  I tried to name cars that start with each letter of the alphabet.
A couple letters were tricky, but I was able to come up with a vehicle for
every letter except "U".  Can anybody think of a car name that starts with
"U"?  Friends and co-workers have so far come up with nothing.
-- 
-Nory
NORYS LAWS:
1.  Just because you have found the problem, doesn't mean you've found the
ONLY problem.
2.  Just because it's new doesn't mean it works right.