Navistar International WorkStar Hybrid 4x4 is designed for medium-heavy on/off-road use.
Chrysler barged into the medium-duty class with the 2008 Dodge Ram 4500 and 5500 Chassis Cabs. They are aggressively specced with gross vehicle weight ratings of 16,500 and 19,500 pounds, respectively, and standard 6.7-liter Cummins turbo diesel engines. There's a choice of six-speed automatic or manual transmissions.
Toyota is striking for the heart of the half-ton pickup market with the new Tundra and its 5.7-liter i-Force V8 engine. The 32-valve, double-overhead-cam design with variable valve timing delivers 381 horsepower and 401 ft.-lbs. of torque and an ultra-low-emissions vehicle rating. The 5.7L i-Force V8 is mated to a six-speed automatic transmission, for a power train that can haul 2,065 pounds of...
Ford's 2008 F-450 Super Duty — the first factory-built Class 4 pickup — can tow 24,500 pounds (8,000 pounds more than the nearest competitor) and is powered by a new, more powerful 6.4-liter Ford diesel engine. The new Super Duty also features a unique TailGate Step that folds down to make it easier to load heavy equipment in the bed; and PowerScope power-folding, power-telescoping ...
The Kenworth T170, a straight truck with a 4x2 configuration, has a gross vehicle weight rating (GVWR) of up to 19,500 pounds.
