FEV Europe GmbH (formerly FEV Motorentechnik GmbH) is a German subsidiary of FEV Group GmbH and one of the world's largest independent development service providers in the development of combustion engines and vehicle technology with headquarters in Aachen. It designs and develops engines for equipment, cars and commercial vehicles, but also for ships and locomotives - from the sketch to the start of series production. FEV has been operating its own fleet of electric vehicles since 2010. In addition to development work in around 65 drive projects, FEV has successfully completed around 20 battery projects in recent years - including water-cooled high-performance plug-in hybrid batteries and a passively cooled package for purely electric vehicles.