When the brakes are applied, most of that forward momentum, or kinetic energy, dissipates into heat. In other words, it’s wasted. Available on select models, the i-ELOOP brake energy regeneration system solves this problem by converting kinetic energy into electricity as the car decelerates. It can then be used to power the headlights, climate control, audio system or any other electrical equipment. Lessening the burden on the engine and improving fuel economy.