Six cars and one road

Six cars want to reach the other side of the river. But only one road is provided. How to help them? The function of reverse vehicle save points is that the drivers will turn back if you fail rather than rush at the river. ha-ha. You seem to be looked down. This is just a joke. Don't take it seriously. You would see an egg when you are about to complete this level. If you laugh out at that time, don't forget to give a like. Thanks for palying my levels. This is really hard.