Ford says it is working on improving the environmental performance of its SUVs. The internal combustion engine will eventually be replaced by cleaner, more efficient technology. The Prodigy is a family sedan that achieves superior fuel economy and low emissions without sacrificing performance, roominess, functionality or safety. Ford's hybrid-electric SUV for sale in 2003, based on the Ford Escape. In the longer term, fuel cells will eventually end the 100- year reign of the internal combustion engine and be the predominant automotive power source.
Fuel cells run on the renewable resource hydrogen.
In a pure hydrogen fuel cell vehicle, the only tailpipe emission is water.