Unlike other hybrids, the Peugeot 2008 Hybrid Air has both a conventional petrol engine as well as a hydraulic air motor and pump that are linked together. When it's moving, air is pumped directly into a cylinder, similar to a balloon being inflated, using excess energy from the petrol engine, plus energy from the wheels and heat from the brakes. Next, the air is released to drive the hydraulic motor, enabling it to run on air, petrol, or a combination of the two. Continue reading for two videos and more information.
According to The Daily Mail, "Motorists will be able to use zero-emissions air power for lower-speed driving in cities. The feature is activated automatically when the car is doing under 43mph. When accelerating or climbing hills, combined or ‘hybrid’ mode is preferable as the vehicle receives power from both engines. And for long-distance cruising, traditional petrol power is best."