>Bill Gates has invested $23.5 million in order to “complete the engineering and testing” of Ecomotors’ Opoc engine. From the green car prospective, this engine has a lot to offer. For starters it has 50% fewer parts and is less expensive to repair than competing engines. This means that car owners may be more inclined to hold on to a vehicle knowing that it won’t cost them as much to repair when it’s out warrantee. The Opoc design may also be available in a diesel option, which offers significant fuel savings. This engine could be the answer to ease emissions and lesson fossil dependence while electric vehicles and thier required infrastructure are developed over the next decade.