DETROIT -- The world's first commercially mass-produced hybrid car has claimed the honor of 2004 Car of the Year from Motor Trend magazine. What helped drive the Toyota Prius to become Motor Trend magazine's 2004 Car of the Year? Great fuel economy -- up to 60 miles a gallon in the city. Editor-in-chief Kevin Smith describes the Prius as "a capable, comfortable, fun-to-drive car that just happens to get spectacular fuel economy." The newest version of the Toyota Prius, introduced in 1997, beat out 26 new or significantly reengineered models from car makers like Acura, BMW, Cadillac and Volkswagen. The...