Chevrolet Colorado ZR2 Bison

A collaboration with American Expedition Vehicles, the ZR2 Bison wears steel bumpers and five underbody skid plates. Like the standard ZR2, the Bison rolls on 31-inch Goodyear Wrangler Duratrac tires, and it’s brawnier than the standard Colorado on which it is based. Specifically, the ZR2 is 3.5 inches wider and sits 2 inches higher. The ZR2’s advanced Multimatic DSSV shock technology is something normally seen on supercars. In this application, the tech is tuned to let the ZR2 excel at both rock-crawling and high-speed desert blasts. Solidifying the ZR2's cred as a sort of factory King of the Hammers truck, it's one of the few vehicles fitted with both front and rear locking differentials. A snorkel intake is optional.

The available 2.8-liter turbodiesel has a sophisticated exhaust brake to save the brakes while towing—and it doesn’t rattle off a Jake-brake staccato to let the next town know you’re coming. With only 186 horsepower, the four-cylinder diesel isn't quick, but its 369 lb-ft of torque are handy on the trails.