I have had several requests recently for advice on how to rig vehicles on complex paths, S bends and the like, so I have published four tutorials on my website just look for the menu items on the right of the pages.
The first covers the basic principles for cars and articulated lorries (Truck-Semitrailers on the West side of the Big Pond) that are used in all four tutorials, and for vehicles including motorcycles and aeroplanes. I have not shown any suspensions yet, these tutorials are about getting the wheels to rotate and steer and getting the bike and plane to bank on corners, without having to keyframe everything.
Here is an image of the Bike:
And the plane:
I have used a mixture of basic Armature Rigging, Drivers, Animation Nodes and some of my own AN nodes. The models are very basic, just to show the principles and there are four videos, one for each tutorial, to show the animations in operation.
I hope you find these useful and if you have any questions, please either ask here, or send me a PM. The question that comes up time and again is how to make the wheels rotate properly when the vehicle strays from a Global Axis, these methods take care of that in a simple and easy to use fashion. :eyebrowlift: