Where do cars get their energy from?

The majority of cars get their energy from the combustion of fossil fuels, such as gasoline or diesel. These fuels are burned in an internal combustion engine, which converts the chemical energy stored in the fuel into mechanical energy that powers the car.

Some cars also get their energy from alternative sources, such as electricity, hydrogen, or solar energy. Electric cars use batteries to store electrical energy, which is then used to power an electric motor that propels the car. Hydrogen cars use fuel cells to convert hydrogen gas into electricity, which is then used to power an electric motor. Solar cars use solar panels to convert sunlight into electricity, which is then used to power an electric motor.

The energy efficiency of a car is measured in miles per gallon (mpg) for gasoline-powered cars, and in miles per gallon equivalent (MPGe) for electric cars. The higher the mpg or MPGe, the more energy efficient the car.