The vehicles work fine after starting a new game. It works totally fine if I leave and come back to the game immediately. However, once I save the game and come back the next day to it, the vehicles are not working. The vehicle will work if I am already in the vehicle after coming back to the game. If I get off of it and try to ride it again, it would not. Sometimes, it just won't move from the first place. Well, the vehicle's engine is running and it will kind of move like it's sliding very slowly. Others who had the same issue as I do told me to shoot the vehicle a little first and drive but it doesn't do anything. They say it has to do with the placement of vehicle or not being able to recognize the player or something. It does this with CBA and ACE mod on.