BMW, already stating that they aren't interested in making gas/electric hybrid vehicles, will implement BMW's regenerative braking system on their best-selling 3-Series in October.
While the standard hybrid recaptures energy normally wasted in braking with the electric motor, BMW's system uses the energy to help power the alternator in energy production. Both the 5-Series and the 1-Series have already used this type of system, which proves good results.
The system is capable of coupling and decoupling the alternator from the engine, which has the dual benefits of slowing down the vehicle when engaged and freeing up more engine power for the wheels when disconnected.
Read Article