Vehicle Physics Pro

Advanced vehicle simulation kit for Unity 3D providing fully realistic and accurate vehicle physics.

Quick links: Feature details, demo downloads, product walkthrough, comparing with other vehicle simulation kits.

Project under development: Beta stage

Beta stage means the project is mature and bug-free enough to be used in actual projects, but some features are yet to be developed and issues might appear. Main code is not expected to have significant changes. Still, everything is provided as is without any warranty.

  • Some components and scripts are yet to be written or completed.
  • Some features are yet to be implemented. See the Roadmap below.
  • This documentation is being actively written and updated. Some pages are yet to be completed.

Early Access to Vehicle Physics Pro is now available with the Professional and Enterprise licenses. Learn more

  Stay tunned!   Follow me @VehiclePhysics on Twitter for the latest news and announcements.

Some vehicle 3D Models were kindly donated by Trevor Ley and Eric Adams.
Spa-Francorchamps track gently offered by Jasper Stocker, from the Track BuildR asset.

Advanced AAA+ vehicle physics simulation

Built around an accurate physics solver providing realistic results for all vehicle types and setups. The precision of the numeric results depends on the integration steps only.

Modular powertrain design

Vehicle dynamics core is implemented with functional blocks with inputs and/or outputs that can be connected in any number and combination. Any vehicle setup can be emulated by arranging and connecting blocks. VPP includes standard vehicle blocks such as engine, clutch, gearbox, differential, torque splitter, and more.

Advanced wheel and tire friction simulation

Provides accurate friction values in all situations. All torques acting in the wheel are properly combined resulting in accurate tire forces and correctly calculated wheel spin rate.

Realistic and coherent

The underlying concept is a custom vehicle simulation model based on essential physics facts: forces, torques and frictions. This model is easier to understand and simpler to calculate than the commonly used models, yet providing physically accurate and realistic results.

More features and details

Development roadmap

Base: Tire friction, solver, modular torque model


Steering, Brakes

Engine + clutch


Driveline and axle setup

Repository clean up and upgrade to Unity 5

Skidmarks, smoke, tire trails

Vehicle audio: engine, turbo, impacts, tire skid...

Minor bug fixes and code polishing

Scenes and vehicles for tests

Enter the Beta stage!

Generic steering wheels support (DirectInput)

Performance Analysis Charts

Replay system with rewind & continue

Driving aids

Demo scenes and examples

First public release!

Complete the documentation

Anisotropic tire friction

Additional components

Feedback is welcome!

  • General usage, workflow, integration in current projects.
  • Simulation: components, settings, behavior.
  • Documentation: things you would want to learn, know about, or are not fully understood.
  • Documentation: typo and grammar fixes.

Feel free to write me to or via Twitter @VehiclePhysics.


My most sincere gratitude to these great artists who contributed or are contributing in some way with Vehicle Physics Pro: