Transmission cooling lines? Other catastrophic items?

Transmission cooling lines and other catastrophic failures should definitely be checked when buying a Toyota Avalon 2005-2008; these include engine misfires and oil consumption issues due to faulty piston rings, worn camshafts, faulty ignition coils, etc., and power window failure due to faulty master control switches or faulty window regulators.

Also, make sure there's no significant oil leaking beneath the vehicle and the steering has smooth rotation without unusual knocking and grinding noises (especially prevalent in 2005 models). Finally, ensure the cabin heating system produces heat efficiently. Check with authorized dealerships to inquire whether certain recalls for these model years of your interest remain unresolved so any potentially catastrophic issues can be nipped in the bud for safety!