Dodge reinforced its commitment to its emerging commercial-vehicle program with the 2006 Dodge Ram 3500 Box-Off 4×2 Dually sporting what was best-in-class acceleration, towing capacity and torque. An 11,500-pound-GVW model with a Cummins turbodiesel delivers 325 horsepower and 610 lbs.-ft. of torque and is rated to tow 15,900 pounds. The truck's standard engine is Dodge's V8 Hemi. Oil-change intervals are double that of competing vehicles. The Ram 3500 rides on 17-inch wheels and features a 35-gallon fuel tank. Estimated list price: Regular cab: $27,670 to $31,215; Quad cab: $31,300 to $35,050.