Problem setting up vehicle physics for pre-made asset

Hi, I am trying to setup vehicle physics for an asset extracted from a game which originally ran in UDK.

This vehicle has individual bones for the front wheel and only one bone for both back wheels. I setup the vehicles as image shows but the vehicle won’t move.

Is there a correct way to setup the physics apart from rerigging the whole car?


Original File!Ah7KjZZ45X4j5RlrChj1_2HTqfbZ (open temporarily)