A flood damaged car comes with a variety of problems, including foul odors, rust, odd noises, engine smoke, and electronic damage. If you are shopping for a used car, a vehicle history report will show any reported flood damage. Flooded cars may also be declared a total loss due to the extent of the damage and the costly nature of the repairs. If a flood damaged car has been declared a total loss and issued a salvage title, it may be challenging or more costly to insure in the future.