I used Truss Physics for the tires, for the Front Leaf Springs, for the for the Rear Leaf Springs, and for the Frame so it can twist.
For more info about Unity Engine visit the official website: https://unity3d.com/
►My System Specs:
- CPU: Intel Core i7-7700 3.6GHz (Kaby Lake)
- Graphics Card: Palit GeForce GTX 1060 Dual 6144MB GDDR5
- RAM: 16GB RAM
- Motherboard: Asus H110-Plus Intel H110 (Socket 1151) DDR4 ATX Motherboard
- Power Supply: Cougar VTX 450W 80 Plus Bronze Power Supply