For the Super Category, you honestly only need two cars. For the regular road cars use the Rocket, about 100k with some extra for mods, no need to pit or refuel most of the time, will outbrake and outcorner every car on the track. For the ones with LMP or GT cars, use the Mazda Furai, though it no longer exists (ty Top Gear) , its basically an upscaled Rocket, minus the premium graphics and interior. That car as well would only need to maybe pit once in the other races. It should cost you for both a few bucks, nothing crazy.
They are in my opinion, the best to use because they are both quick, have good cornering speeds and handling, and they consume fuel at a much slower pace than other cars of its like. Tire wear is basically up to how you drive, but you don't really need a Le Mans car to go at it. Though if you did want one, I like the Minolta Toyota, great handling and power delivery is almost way too fast but manageable if you learn.
