This is Red Rock Valley, the 2.5-mile part speedway, part road course. It appears in only Gran Turismo 2, which is a shame because it's an awesome track.
Credit to Papyrus and the maker(s) of Autumn Hill, Clubman Stage Route 5, Suzuka_GTP, and Twin Ring Motegi Super Speedway for 3dos and mips used on this track.
Credit to Papyrus and the maker(s) of Autumn Hill, Clubman Stage Route 5, Suzuka_GTP, and Twin Ring Motegi Super Speedway for 3dos and mips used on this track.