Tesla on Titan

I am planning to make a 2D Top Down Down car racing game. The project is titled Tesla on Titan. It is set in a future era of 2150 where a car race is organized on Saturn's moon Titan. Currently I am working on the physics of the game to make them realistic. Side by side I am also drawing my own pixel art for the vehicles and Titan's environment. 

To test if everything is working like a car game, I have made a sample Test Track where users can check the car physics. Please try the Test game & pls let me know the improvements required. Thanks

https://abhishek-kulkarni.itch.io/tesla-on-titan