DaimlerChrysler and UPS, the world's biggest parcel service, are embarking on a joint venture to field-test and further develop the Mercedes-Benz fuel cell Sprinter van. The collaboration agreement, under which fuel cell models will be tested in commercial practice, was drawn up in Ann Arbor, Michigan, in May 2003 at a meeting between DaimlerChrysler, UPS and the US Environmental Protection Agency (EPA) and a fuel cell Sprinter was handed over to UPS at the DaimlerChrysler plant in Düsseldorf on Thursday.