In the new update from 10/23/18 (yesterday).
There’s a bug in where if your car gets tilted over or is upside down, it will then turn transparent.
You then will be stuck upside down or sideways for the rest of the game.
This bug appears in adventure games, I haven’t tested it or seen it in other game modes or free roam. So I’m not sure if those are affected by this bug as well.
So far, this has happened to me twice and I’ve seen it happen to 3 other players.
Having you car be flipped over is a very common occurance in the adventure game mode and it becomes detrimental when you have no way of flipping your car.
Thank you for reading, I hope the devs are able to get this bug squashed ASAP!