(10 Nov 2014, 5:36 pm)Dan wrote No - they aren't. The Micro Hybrid recovers energy lost from braking to power the vehicle electrics and compressed air systems, saving up to 10% in fuel costs.
Actually the are. They use the flywheel to move away up to 20 mph before the engine takes over. Still a hybrid just with a different second power source.
The flywheel acts like a wind up toy, as the vehicle brakes the flywheel is spun to take in kinectic energy. When the vehicle then starts to move of, the energy in the flywheel is then released.