Good evening, Kaileyclark14p9kph8!! Whenever cars are being driven, gasoline converts to a different type of energy where it has been previously used. Whenever a car is sitting still, there would be potential energy happening, meaning that nothing is happening at the time. Whenever a car is driven, the gasoline is converted to potential energy to heat (thermal) and kinetic (moving) energy. The best answer would be that this is a relation to the first law of thermodynamics because energy can be converted from one type of energy to another. I hope I helped!! I hope you have a great day. :)