I bought a 1990 pearl yellow TT in 1996 for $13,500. It had 60k miles and was in mint condition mechanically and cosmetically. The car your looking at is now four years older than mine was when I got it. I think $13k would be fair if it's in great condition
Jonathan Howlett AIM-JRHZ32 1993 Ultra Red Twin Turbo 1990 Pearl Yellow Twin Turbo(Deceased)