3d Models of race tracks

3d Modelling of 10 sprint car race tracks. All tracks would be very similar oval shaped race tracks with dirt textures. with some minor differences between them : eg corner banking (Higher/lower), wider/thinner tracks, grass/dirt inner part of the over, banking around the track some minor turn adjustments etc. low poly as it would be for a mobile game.

Basically we are creating a mobile sprint car game. We DONT require any scenery or backdrops. just the dirt tracks themselves with the inner/outer fencing. for an example of the type of racing we will be creating and a view of example tracks can be seen in this console game trailer. https://www.youtube.com/watch?v=VniHKuFGQQ0
Here are some more videos of tracks we are looking at.
https://www.youtube.com/watch?v=Gfr0W5XdSm4
https://www.youtube.com/watch?v=llC-8bLEucY
https://www.youtube.com/watch?v=01O7SwGXIFE
https://www.youtube.com/watch?v=KNoGrxx3s94

Here is a link with real venues.
https://traxion.gg/every-track-in-world-of-outlaws-dirt-racing/

So basically we only require the ground, the banked tracks with dirt textures and the fencing around the tracks.
with each track just a little different from the other. higher/lower banking, width etc.
We don't need any of the backdrops or scenery, just the actual dirt tracks them selves.