Europe invests $5MM Euros in the HyICE hydrogen engine technology program. The program is a successful European collaboration between BMW Forschung und Technik, ANSYS, Irion Management Consulting, MECEL, Universitat der Bundeswehr, Technical University of Graz, MAN Nutzfahrzeuge, Institut Francais du Petrole, Ford Forschungszentrum, Volvo Technology Corporation and Hoerbiger. ...
... "The Hydrogen Internal Combustion Engine (HyICE) project has tested ways to 
make hydrogen-fuelled engines that are as efficient as current diesel engines, yet non-polluting, and with little or no trade-off in terms of engine size and power. These hydrogen-fed engines offer clear advantages over current generation engines and promise to compete with other propulsion systems in terms of performance and cost. The project members from the automobile industry, supplier companies and universities developed innovative fuel-injection concepts for engines for passenger cars as well as for trucks and buses. European hydrogen experts involved in HyICE regularly shared their findings with researchers from Department of Energy laboratories and universities in the US. " ...
Via Europa: Hydrogen Engine Research in Europe