Thanks Pizzaguy. I should clarify. I am still searching for a car. It's not a good time to test drive a convertible in the upper midwest. :-) My previous experience comes from motorcycles and older cars (Buick and Pontiac) where the vehicle is worth less if the engine and frame numbers do not match, implying a replacement engine was installed at one time. Is this something I should look at with these cars? If they don't match from the factory, it's not an issue!

Terry