Although an expert inspection is probably worth paying for before purchasing an expensive vehicle like a 1967 Ford Mustang, buyers should look for signs of rust. Small or even moderate amounts of rust can be removed, but too much rust can compromise the integrity of the vehicle.
Another problem with rust is that it can spread beneath the surface of the metal, so rust should be removed carefully before painting the car. Rust can also be a sign that the vehicle has been neglected, which may mean that the vehicle has other problems as well.
It is also important to ensure that all maintenance paperwork is available. Missing paperwork may indicate that the vehicle has not been maintained well, although antique vehicles owned by multiple parties may have some missing paperwork.
Buyers can often detect major problems during a road test. The engine should start quickly, and there should be no smoke leaving the car's exhaust. However, vehicles produced in the late 1960s handle differently than newer vehicles, so what feels like poor performance may be the lack of more advanced features drivers have become accustomed to. If possible, buyers should test drive a similar vehicle to learn how it should feel to drive.