Mazda

Showing its commitment to improving the world's air quality, Mazda introduces the all-new Tribute Hypid-Electric Vehicle (HEV) for the model year. With a hydrogen-powered version of the RX-8 and a hydrogen-powered hypid version of the Mazda5 n, the Tribute HEV is the latest environmentally friendly vehicle to join the Mazda lineup.

A "full" hypid, the Tribute HEV can run on 100 percent electric power up to approximately 25 mph, maximizing in-city fuel economy and making it one of the least-polluting vehicles sold. Still, the Tribute HEV stays true to the Zoom-Zoom Mazda owners have come to expect by delivering the performance required by SUV owners.

The Tribute HEV offers superior environmental performance with its MZR 2.3-liter gasoline engine, which has been modified to run on the Atkinson combustion cycle for superior fuel efficiency. The Atkinson cycle modifies the timing of the closing of the valves, enabling the engine to realize more power with cleaner emissions. At low speeds or in low-load situations, drive is provided by a permanent magnet AC synchronous electric motor, producing 70 kW @ 5,000 rpm and 330 V maximum voltage.

When additional power is required, the Tribute HEV's 2.3-liter DOHC 16-valve Atkinson cycle four-cylinder engine seamlessly engages, contributing 133 horsepower at 6,000 rpm and 124 lb.-ft of torque at 4,250 rpm. As a result, the Tribute HEV pushes out a combined 155-hp, with 0-60 times comparable to a 200-horsepower V-6 engine, while increasing city-driving fuel economy by nearly 75-percent. The Tribute HEV is equipped with a smooth-shifting, electronically controlled Continuously Variable Transmission (CVT) that realizes seamless, highly efficient adjustment of the gear ratio under electronic control.