Faked gravity on wheeled vehicle

So I want to make it so my vehicle can drive on walls and have dynamic gravity. I’ve checked some threads and none of them really helped. So I am trying to make this fake gravity that can switch direction, but when world gravity is set to none, the vehicle cannot move… Here’s video

Anyone can help? Thanks :slight_smile:

Well if no-one has a solution, it’s okay. I’m not doing this project right now anyways