Bob's comment about finding rust on EVERY car is true, assuming the car gets used. I'm sure there's show cars that are parked in controlled climates and have been cleaned with a Q-tip, but any car driven on any road has rust on it. Even brand new cars sitting at a dealership. Altho, rust on CS's should never be ignored because of their inherent problems. My '49 Chevy pickup has rust on it, but its probably been there for 30 years and still isn't a concern.