Because most of them rely on internal combustion engines that burn gasoline, cars, trucks, and other motor vehicles are among the worst polluters on the planet. In recent decades, however, technological advances have made it possible to reduce greenhouse gas emissions from vehicles. Hybrid cars that do no rely exclusively on gasoline-driven engines are among the most popular solutions to the pollution caused by cars. Furthermore, they save drivers money on gasoline, as they are more efficient and require less fuel. Today, there are all manner of hybrid cars available, each of them having their own distinct advantages.