Idea how to rig sonic

[karelrosseel]

Hi, I found 3 models of Sonic, but need to be in car with turning wheels animation, any idea how to rig this so sonic is sitting in car ? When having 5 fingers?
The car sonic
The car grey car

Sonic1
Sonic2 T
Sonic3 T hair details

Same flr Mario car without Mario in it
Car kart mario