This is very impressive and fun! I am on a PC so the problems that i experience might be different to other devices.
A few things that could be looked at:
- The max steering angle on the steering wheel turns the wheels less then when you click left or right on the keyboard.
- on track 1 there are gaps between the road and the curb.
- on track 2 the curb is spikey. i am not sure if that is intended. it might be a mesh bug.
- there are parts of the floor where it doesnt respawn you.
- the keyboard steering is very snappy. try to find a way to smooth it out
- When in full screen, the buttons on the menu go off the picture and the text is very small.
Thats basicly it! I dont use unity but you can ask me for help since i am farely experienced in game design. Keep up the great work!