That? Rust? That's nothing
Every car I have bought has had rust. It's unavoidable up here unless you get either a new car or one only a couple of years old.
Although somehow my boss's 06 impala is totally rust-free somehow, I don't quite understand it. I've seen newer cars that have at least some surface rust somewhere, but his has absolutely nothing and he drives it year round and has 140k on it now :|