A car’s engine is also know as an Internal Combustion engine. Here is how it works:
First, a little bit of gasoline or diesel is put inside a chamber or cylinder in the vehicle. When the fuel enters the chamber, a small lighter lights the fuel on fire. This causes a tiny controlled explosion. This explosion causes a long rod called a piston to move, which is connected to the wheel. This helps the vehicle move. In electric vehicles, the electricity acts as the spark which lights the fuel on fire. This also helps the piston and the wheel move.