Wheel Controller 3D is a complete alternative to the Unity's inbuilt wheel collider. It allows for more realistic vehicle behavior, more customization and most importantly - improved ground detection. See for yourself: WebGL Demo (all the assets in the demo are included) Website & Video Auto-generated Documentation Features: • Wheel has width and length, not only a single point in the middle. • API with only minor differences from Unity's inbuilt WheelCollider - easily swappable. • Fully customizable via custom inspector. Adjust spring, damper, friction curves, geometry, etc. • Adjustable camber, caster and rim offset. • Pacejka friction model with support for different surfaces. • Fully adjustable at runtime. • Adjustable ground detection resolution. • Can handle wheel visuals by itself (rotation and position). • Suitable for different kinds of vehicles: cars, trucks, motorcycles, tanks, etc. • C# (OOP) with documentation and API reference. • Source code included. Screenshots: 3D ground detection: Realistic suspension with camber and rim offset: Ground detection over the whole bottom surface of the wheel: Custom inspector: API similar to the Unity's wheelcollider for easier use and existing project conversion: A lot of development time went into this asset so I really do hope you like it. Also, suggestions for improvements are alway welcome. This asset is now available at the Unity Asset Store.