1. Do the tops come off? 2. Does it leak fluids? 3. How is the under carriage? 4. Have the air bags been out? 5. Tears in the seat? 6. Electroincs work? 7. Been hit from the rear? 8. Does it get hot? 9. Has it been lubed? 10. Any body work done? 11. Takes a good waxing? 12. Driven hard? 13. Smoker?