The Ultimate Adjustable Car Rig is a professional grade, production ready vehicle tool for Autodesk Maya. As well as its unique resizing capability, it boasts a fantastic built in path system, light weight dynamic suspension, in depth steering geometry tuning, tire pressure interaction and a full working chassis model. Users are easily able to resize this rig to fully connect to any 1-10 wheeled 3D model in a matter of minutes to achieve stellar animation results without any headaches.

Can I export FBX animations to Unreal or Unity?
Yes, the control rig in Maya is used to generate skeletal animations that can easily be exported as an fbx or alembic cache for use in software such as Unreal or Unity. These links will show you how easy it is to do this:

Export using the UAC Rig Exporter
Exporting Skeletal Mesh from Maya
Importing Skeletal Mesh to Unreal
Baking Animation
Exporting Animations from Maya
Importing Animations to Unreal

Can I rig vehicles with more or less than 4 wheels?
Yes, the full version supports 1, 2, 3, 4, 6, 8 or 10 wheeled vehicles. This video shows an example of this:

Rigging a 6 wheeled truck
Rigging 1 – 3 wheeled vehicles

Can I rig vehicles with different sized front and rear wheels?
Yes, you are able to easily resize all wheels. This video shows an example of this:

Rigging different sized wheels

What version of Maya does the UAC Rig work in?
The UAC Rig works in all versions of Maya.