Hi fellow racers!

I've been meaning to put together a cup, and I cant really descide what car/cars to use.

What car "classes" are there really in LFS? What cars can be driven together on the track, and still race tightly?

The only ones I know is the GTI GTR / UF GTR and FZ 50 GTR / XR GTR / FXO GTR.

Are there any more?

The XF GTi is a match for the XR GT. The RaceAbout is a match for the FZ50.
The XR GT Turbo is a match for the RB4 GT and the FXO Turbo.

The LX6 is supposedly a match for the RA and FZ50, but it does depend a lot on the track. I say put a small V8 in it (but not a silly uber-high revving one like the LX8 would of had), giving it around 240bhp (it's too similar to the LX4 now) and sort the aerodynamics out on it (the LXs are far too aerodynamic).

Alternatively make it more akin to a C'ham Superlight.

Preferrably both. (that'll give us an extra car, for those of you I may have just confused )