I've got B.F. Goodrich Belted T/As on the Challenger, tires bought new in the mid-late '80s that sat parked outside (usually car-covered but not always) in the Nevada sun from 1991 - 1995. They look fine, they hold air, but I don't expect I'd want to use them for anything more than what they're doing now; holding the partially disassembled car up in my garage.