A turbocharger, or turbo, is a gas compressor that's used for forced-induction of an internal piston engine. A kind of supercharger, the point of a turbocharger is to extend the density of air entering the engine to form more power. a turbocharger has the compressor powered by a turbine, driven by the engine's own exhaust gases, instead of direct mechanical drive as with plenty of other superchargers.

A regenerative brake is an energy recovery mechanism that decreases automobile speed by changing some of its kinetic energy into a handy sort of power rather than abating it as heat as with a standard brake. The converted kinetic energy is stored for later use