How to sleep in the car to keep warm in winter?

There are two ways: the first way is to use the warm air of the vehicle itself for heating. The second way is to install a wooden heater, which can work without starting the engine. Either way, open the window for ventilation to avoid poisoning and life-threatening. When sleeping in the car in winter, you can use the car warm air to keep warm. Warm air heating needs to start the car. It should not be too long to keep warm with car warm air, so pay attention to window ventilation. If you start the car for a long time, it may lead to poisoning of people in the car, or you can use a rechargeable heater to heat the car, which is relatively safer. Million car purchase subsidy