Me and my friend found out that there is a bug when you have to charge a car battery.
If it bugged you and you cant push the car down the road just restart it from the last checkpoint (it will spawn you right in front of the car) and do the things again exept one and that is taking out the log under the car beacause it has a allowed animation to take it out but accually you will not take it out and you will have to restart it again. At first you have to lift the car from behind with the pole and then you can take out the piece of wood. After all that it will allow you to push the car down to the charger and you can go.