MAZDA SPIRIT RACING MAZDA3 Bio concept (lapping under 2 minutes) makes me want to sim(cade) race in a similar car but I don't think I even own any games with fuji or diesel cars except gran turismo 4 but my ps2 and ps3 and ps2 emulator are all broken (I could probably fix the emulator but it doesn't support pressure sensitive buttons and iirc it was also being weird about treating the shoulder buttons as a single axis which obviously is not sensible for gas & brake)
also the ST-Q class the car is racing in does not require homologation and I think they should call them no-homo cars
gran turismo 4 also had nitrous but not in a goofy magic speed boost way