First, carpool on the way to save gasoline. For example, carpooling from where you live to where you work, carpooling when you travel, and so on.
Second, get married and earn a red envelope. When someone else gets married, you can get a red envelope by using your car as someone else's wedding car. For example, in the group of friends, in the wedding company publicity.
Third, private cars, providing cars and drivers, earn daily compensation. For example, some friends are anxious, some friends are proud, and they need face in a short time. They can provide car and driver services at the same time for a while, and the income will definitely be higher.
Fourth, relatives and friends borrow privately to earn rent. It is also reasonable for trusted relatives and friends to borrow a car and charge a car rental fee, such as how much it costs a day.