When Chevy puts an RS - "Rally Sport" - badge on its cars, you should immediately think "sporty model." That same theme is present here, with GM's 6.2-liter V-8, Baer six-piston, fifteen-inch front brakes, multi-piston rear brakes, and twenty-two inch wheels.
In Chevy-speak, Z71 means "off-road package." So Z71 Plus must mean even more of the same. The Plus in this 2006 SEMA Concept means a two-inch lift kit, Rancho Suspension shocks and twenty-inch Chevrolet Accessories chrome wheels.
Check out these five factory-backed Silverado customs.