Base models come with ABS, air conditioning, cruise control, AM/FM/CD audio, an attractive chrome grille molding, a chrome rear step bumper, and 17-inch chromed steel wheels. Carpeting and cloth seats are also standard. Regular and Extended Cabs are available, but not the Crew Cab, Base prices range from $21,045 to $31,270.
The W/T (Work Truck) model deletes the CD player, chrome, cruise control and carpeting. These plane-Jane trucks are aimed at commercial and municipal fleets, with prices ranging from $18,770 to $29,540.
SLE trim adds fog lamps; power windows, mirrors, and door locks; a leather-wrapped steering wheel; overhead console; and other amenities. Leather upholstery is optional. The 4.8-liter V8 and automatic transmission are standard on Regular and Extended Cabs; Crew Cabs come with the 5.3 and automatic. Prices range from $25,755 to $34,140.
SLT trim, available on Extended Cabs and Crew Cabs, adds automatic dual-zone air conditioning, leather upholstery, power-adjustable bucket seats with heat and memory, floor console, heated outside mirrors, new Gen6 OnStar telecommunications and 17-inch aluminum wheels. The 5.3-liter V8 is standard, with a higher-performing, all-aluminum 5.3 in 4WD Extended Cabs. Prices range from $33,270 to $38,205.
Sierra Denali ($41,735), the flagship of the fleet, packs a 345-horsepower version of the 6.0-liter V8, along with automatic transmission, vacuum-boosted four-wheel-disc brakes and an exclusive, sophisticated full-time all-wheel-drive system. Denali comes with tone-on-tone leather, extra sound deadening, a Bose audio system with separate controls for rear-seat passengers, and other exclusive amenities. It's equipped with steering wheel controls for the audio system, Gen6 OnStar, trip computer, and other programmable functions. A power sunroof is available.
A Sierra Hybrid is available in some states and, with its unique starter/generator combined with its Vortec 5300 5.3L V8, offers up to a 10 percent improvement in fuel economy while delivering the same 295 horsepower and 335 pound-feet of torque as any other Sierra with the 5300 engine.
Quadrasteer electronically controlled four-wheel steering is available on Sierra 1500 standard-bed Extended Cabs with 4WD, 1500HD Crew Cabs with 2WD or 4WD, and on 2500HD Crew Cabs. Quadrasteer reduces Sierra's curb-to-curb turning diameter by 26 percent and enhances high-speed stability. It comes packaged ($1,995) with a limited-slip differential, heavy-duty brakes and clearance lights. Next Page