Off-road specialist Fox Factory previously tuned the Ram 1500 for street-warrior duty, and now it's the Chevrolet Silverado 1500’s turn.Along with an available 675-hp supercharged V-8, the Chevy pickup is slammed to the ground and rolls on 22-inch wheels with sticky rubber for better handling.Priced starting at $84,685, it's not cheap, but it’s about as luxurious as you'd want without sacrificing payload or towing.