Dodge Ram HD
Dodge. This year brings a major upgrade to the HD fleet's top diesel. Stretching from a 5.9-liter to a 6.7-liter turbo-diesel mill, it comes with an optional six-speed auto tranny. Boosting a towing maximum to 16,400 pounds, this model cranks out 350 hp with 650 pound-feet of torque. Engines and specs for the 1500s and Power Wagon remain unchanged. 800-423-6343. www.dodge.com.