It all began back in the 1980s, when Daimler researchers turned their attention to cold combustion. In 1994, Mercedes-Benz unveiled the first fuel-cell vehicle to the global public – the NECAR 1. Many further vehicles followed, including the A-Class F-CELL fleet. In 2011, special attention focused on the F-CELL World Drive, the first round-the-world journey in fuel-cell vehicles. In 2015, the F 015 Luxury in Motion concept car presented an F-CELL plug-in hybrid drive system, designed for 1,100 kilometres of local zero emissions motoring. To date, fuel-cell vehicles from Mercedes-Benz, including the B-Class F-CELL and the Citaro FuelCELL Hybrid urban bus, have together covered over eighteen million kilometres, thereby demonstrating the maturity of the powertrain concept. The next technological advance is now imminent, the GLC F-CELL.