2007-2008 GMC Sierra 1500: Road Test

Acceleration is more than adequate at all speeds with the 5.3 V8, and robust with the Denali's 6.2-liter V8. The smooth-shifting transmission kicks down quickly for more passing power. Tow/Haul mode adjusts shift points for best performance with heavy loads. Denali's manual-shift control, mounted on the shifter stalk, works with an easy flick of the thumb. Test 4WD Sierras have averaged 14.1 mpg. Denalis averaged 14.6 to 15.9 mpg. GMC recommends regular-grade fuel for all engines except the Denali's 403-hp V8, which should use premium. Some 5.3-liter engines can run on E85 (an ethanol/gasoline blend). GMC's standard Z85 suspension provides a comfortable, compliant ride, with less reverberation over bumps than in most pickups. The stiffer Z60 suspension makes the ride more jittery over smaller bumps, partly due to its 20-inch tires (versus standard 17s). The available Z71 suspension is suited for off-road duty. That one exhibits some choppiness over pavement cracks and washboard surfaces, though it's not overly harsh in everyday driving. A Denali with 20-inch tires is sufficiently composed, though standard 18-inch rubber is likely to offer more stability. Steering is nicely weighted, if a bit numb. Expect noticeable body lean in fast turns and quick changes of direction with the Z85 suspension, but handling is on par with most other full-size pickups. The Z60 and Z71 suspensions improve handling only slightly. Responsive brakes have fine pedal feel. Road and engine sounds are lower than in most pickups. In fact, the 5.3-liter V8 is a model of refinement. Wind noise intrudes only above 60 mph. Gauges are easy to see and read, but the rotary wiper switch is inconveniently mounted on the turn-signal stalk. GMC's "Pure Pickup" interior places radio and climate controls high on the dashboard, just out of easy reach. Materials are better than expected of a work-oriented truck. The available Luxury interior mimics what's in the big Yukon SUVs, with controls mounted lower but within easy reach, plus materials that are a cut above the pickup norm-even though most surfaces are hard plastic. GMC's optional navigation system absorbs some audio controls, but does not complicate their use. Denalis expand on the Luxury interior, with upgraded trim and an overall upscale feel. Front-seat space is ample for adults. Bucket and bench seats lack side support in fast turns, but are firm and comfortable. Visibility is generally good, though the extended cab's thick rear pillars hinder views to back corners. Short drivers may appreciate optional power-adjustable pedals, if installed. Rear-seat occupants can experience generous headroom. Legroom is ample in crew cabs. Extended-cab seatbacks are set at a comfortable angle, but legroom can get tight with front seats moved far back. With front bucket seats, the center console restricts foot space for the center rear-seat passenger. Extended-cab rear doors have been available with power windows, which are a welcome convenience. They open wider than before-nearly flush with the cargo bed, for easier entry and exit. But if fully open, a seated passenger cannot close the door. On both extended and crew cabs, the rear seat cushion flips back against the seatback, leaving a large cargo area with a nearly flat floor. The Pure Pickup interior features upper and lower gloveboxes; the Luxury interior has only a lower one. Front bucket seats came with a roomy console bin, while the bench seat has been available with a flip-down center armrest that doubles as a large storage bin. Otherwise, few interior storage cubbies are provided.

Value for the Money
GMC's redesigned-for-2007 Sierra and the similar Chevrolet Silverado are among the best large pickup trucks for refinement and available features. Any truck buyer, new or used, would be well-advised to give these Recommended picks a long, hard look.