I think I read about some that have rust, but personally my does not have any. I think it really depends on how well it was taken care of before. If it saw a ton of salt, hopefully they waxed it good.
my g/f's 3 is an 05 and it's rusing on the hood and around the 3rd brake light. i had a 98 dodge that didn't even have that much rust on it. the previous own must not of taken good care of the paint before we bought it.