Car preheating is often used in very cold countries like Finland. During the night, the car is connected to electricity with a special cable. This system warms the engine before the car is started.

The main reason for preheating is to make starting the car easier in cold temperatures. When the engine is warm, it starts faster and works better. It also reduces wear on the engine and can help lower fuel consumption.

Many people use preheating in winter when temperatures are very low. In the morning, the car is already warm and ready to drive, which makes it more comfortable for the driver.