As it turns out, limited-run super estates like the RS6 Avant GT can soar in value just like exclusive sports cars ...

Prices shown are the prices you can expect to pay for a 1991 Audi 90 Quattro 4 Door Sedan across different levels of condition. Edit options.

Everything from the incredible 1989 Audi 90 IMSA GTO to the R8 LMP and quattro Gruppe B A2 can be spotted, with Le Mans legend Tom Kristense even making a cameo. Though designed to tackle the ...

Prices shown are the prices you can expect to pay for a 1990 Audi 90 Quattro 4 Door Sedan across different levels of condition. Edit options.