This tutorial takes you through the process of creating a basic functioning car. More info See in Glossary component is powered by the PhysX 3 Vehicles SDK. A collider doesn’t need to be exactly the same shape as the object’s mesh - a rough approximation is often more efficient and indistinguishable in gameplay.

I think it’d only really be an issue if you’re using them in an some unusual non physics setup with your own physics.The Wheel Collider An invisible shape that is used to handle physical collisions for an object. I had read on some forums that the wheel colliders where very heavy weight but comparing the physics usage between the controllers which use them and use their own custom scripted ones, I’m not really seeing much impact. I was suprised that Edy’s Vehicle Physics performed so well, really comparable to the very bare bones Unity Vehicle Tools, although if you’re really looking for the highest performance customising the Unity Vehicle Tools is going to give you maximum flexibility to optimise everything. I found the HighRoads controller to be lacking a few options which I’d need to add in which were already available in Edy’s and NWH. I found the MiniRaceCar scripts well written but they require the whole engine to work they’re not really modular so I’m ruling it out form my purpose (its a great engine though). I especially like the coding style of the Highroads Engine. HighRoads and MiniRaceCar both perform really well. Performance wise they’re all pretty good, NWH is the heaviest of the bunch and is very fully featured, you get a lot of options and when not on mobile the performance is really good for what it does, but on an old device like an iPad 2 I think its just a bit too much. I then built out each scene to the iPad and monitored its performance remotely via the Unity Profiler. Simple mobile controls were added ready to be attached. I setup a mobile friendly scene, baked all the lighting, the car model is less than 50 verts and the wheels are verts.

NWH Vehicle Physics by NWH Coding (€71.47).

HighRoad Engine by MoreMountains (€53.60).

Minicar Race Creator by Target Studios (€43.77).Vehicle Tools by Unity Technologies (FREE).Bonus points if the scripts are easy to use and mobile friendly. What do I mean fun and arcadey? I want the car to be able to drift and I want a visually bouncy suspension. It also needs to have decent performance, it’s main target is for phones and tablets and my benchmark will be an old IOS 9 Ipad 2 (OpenGL ES 2.0). I’m starting out creating a simple driving project in Unity and need a car controller for my project, I want something thats fun and simple to drive, an arcade style not a realistic one. This is my experience of trying to choose a car controller for a driving project.

Unity vehicle physics