Converting thermal energy to kinetic energy?

I recently learned that cars lose approximately 80% of the energy from gasoline through heat. Could a car be designed to take that lost thermal energy

I recently learned that cars lose approximately 80% of the energy from gasoline through heat. Could a car be designed to take that lost thermal energy and convert it into kinetic energy, allowing us to travel further on the same amount of gasoline? If so, how?

or:I recently learned that cars lose approximately 80% of the energy from gasoline through heat. Could a car be designed to take that lost thermal energy and convert it into kinetic energy, allowing us to travel further on the same amount of gasoline? If so, how?

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