Mercury's new 2006 Mariner Hybrid is what most people would consider to be a "no-brainer." Fundamentally identical to the Ford Escape, which is available with a gasoline-electric full-hybrid propulsion system that sips fuel like a four-cylinder but powers around town like a V6, the Mercury Mariner makes perfect sense as the next candidate for Ford Motor Company's new hybrid technology.

Because the two vehicles are identical except for minor trim differences, the 2006 Mercury Mariner Hybrid boasts the same high fuel economy, driving range, and clean emissions ratings as the Ford Escape Hybrid. Estimated to achieve 33-mpg in the city and 29-mpg on the highway (city estimates are higher because, as a full hybrid vehicle, this SUV can operate solely on battery power at lower speeds), the 2006 Mercury Mariner Hybrid meets California's Advanced Technology Partial Zero Emissions Vehicle standards.