Mercedes-Benz F 600 HYGENIUS research vehicle, 2005. The new fuel cell is 40 per cent smaller than previous systems, yet at the same time much more efficient and powerful as the system is rated to 85 kW (115 hp).

Daimler Global Media Site - The F 600 HYGENIUS is the first research vehicle to incorporate a bodywork and design concept that has been purpose developed for the fuel cell. The drive technology, the high-voltage battery and the hydrogen tank have all been housed beneath the passenger cell, while the high-torque electric motor – which is also a new development – has been integrated into the rear-axle carrier.