The tires for the rear and front can be changed, but, how about for each wheel?

Locked Diff for the UF1, i dont see why if all the other cars have the option of an LSD or Locked Diff, that the UF1 should be different.

Limit the offroad tires to the off road tracks, such as the hybrid tire, im sure its a simple addition, such as, have the offroad tires only selectable when a offroad track is loaded.

and some "Proper Race Tracks". what i mean is, tracks without all these configurations, as it just seems a little to messy, the reason i like westhill so much is the fact that its just 1 road, 1 track. id like to see more 1 road tracks.

Some Sports Convertable type car, like an MX5, Suzuki Cappuccino, Short wheel base, small, FR car.

Reduced options for the road cars is intentional and the limitations are likely to only increase with time. And the locked diff should be slower anyway, one the last few physics bugs are sorted out few people will be using them, especially in low powered cars like the UF1 where the disadvantages outweight the advantages even more so.

The off-road tyres thing makes sense I suppose, hardly a big deal though.

I agree all the combos at certain tracks is a bit messy, I can't see a track like Aston with it's many configurations existing IRL, however I'd guess it takes considerably less time to make one track have, say, 4 configs, than it does to create 4 whole tracks. So since all tracks are limited to a fantasy nature anyway (due to licensing issues), multiple combos means we get more "logical tracks" to race on as time progresses.