The latest update to this old mod fixed all issues with road colliders (roads, not curbs or barriers), changed the color scheme and improved performance a bit.
I also invite you to take a look at the small Monza racetrack.
And also wait for the SPA!
Could you make some of these tracks spawnable (like this) so that as Apple and mobile users don't feel too jealous?
t
oh my word spa thats gonna be great