[jmudler]

Normally you will see new electronics modules in the engine bay while everything else looks used. Look at the connectors on computers/modules. Do the pins and/or contact points look good or corroded. Rusted interior parts like, pedals, seat tracks, and rusting under the carpets. The hard part is the roof lights and/or sunroofs are known to leak and you can have some of these interior signs without being flooded. Some headliner stains around the sun visor is normal due to said leaks. I would not buy a car from FL or Nashville TN area unseen. Look for title changes shortly after hurricanes or major flood events in said states. If you get a address from CarFax etc - google map it and see if is near water or more inland.

hopes this helps