Top: The fuel cell system of the Mercedes-Benz B-Class F-CELL. Bottom: Development status of a future stack as of early 2013. The significantly more compact dimensions will mean that the future fuel cell system can be accommodated in the engine compartment of a conventional vehicle.

A B-Class F-CELL fuel cell electric vehicle (FCEV)  from Mercedes-Benz’ current FCEV fleet has achieved a continuous running record of more than 300,000 kilometers (186,411 miles) under normal everyday conditions. The still running test shows that fuel cell cars are reliable even under extreme stress and over several years, Daimler said.

Produced under series production conditions, the Mercedes-Benz B-Class F-CELL has been in day-to-day use with customers in the European and US markets since 2010.