2010 Sierra 3500HD New Car Test Drive
The GMC Sierra is an excellent choice among full-size pickups, offering serious towing and hauling capability and a choice of cabs ranging from pure pickup to luxury liner. The Sierra is built on the same platform and shares mechanicals with the Chevy Silverado, but their exterior styling is quite different. Sierra offers a choice of 4.8-liter, 5.3-liter, and 6.2-liter V8 engines, plus a hybrid gas-electric.
For 2010, variable valve timing has been added to the 4.8-liter and 5.3-liter engines. All the V8 engines have Flex Fuel capability (meaning they will run on E85). A 3.08:1 axle ratio and fuel saver mode is standard with the 5.3-liter V8 for improved fuel economy, and a six-speed automatic transmission comes on Regular and Extended Cab models with the 5.3-liter V8. The 6.2-liter V8 is available for Sierra Extended Cab and Crew Cab models, and is useful for towing heavier loads.
The Sierra Hybrid uses GM's Two-Mode Hybrid system. It's available only as a Crew Cab model with a specially tuned 332-horsepower 6.0-liter V8 working in conjunction with a battery pack and a four-speed automatic transmission that houses two electric motors. The Hybrid is EPA-rated at 21 mpg City/22 mpg Highway, while compromising payload and towing capacity (maximum around 6000 pounds).
A choice of interior styles is available. The traditional layout, called pure pickup, has a driver-oriented dash layout with large switchgear and door handles designed for work gloves. The pure pickup interior includes a 40/20/40 split front bench seat with the center section folding down to provide a large storage compartment and wide armrest.
The luxurious Sierra SLT has a cabin similar to that of a luxury SUV, with two front bucket seats separated by a fixed center console. This design places audio and ventilation system controls more easily within reach of the front-seat passenger, who may or may not be a spouse, and it offers space for a navigation system and storage compartments.
The Sierra Denali makes for a comfortable, luxurious pickup with the emphasis on performance rather than payload and towing capacity. The Sierra Denali offers the same sort of high-line content as the upscale GMC Yukon Denali sport utility, and it's available with all-wheel drive. Denali comes with a 6.2-liter V8.
For 2010, side-curtain airbags and seat-mounted side airbags are standard. USB connectivity is provided in the center console of all 2010 Sierra models, and availability of the rearview camera has been increased. StabiliTrak electronic stability control with rollover mitigation is standard on all 2010 Sierra 1500 models.
The 2010 GMC Sierra offers four engine choices: A 4.3-liter V6 of 195 horsepower, a 4.8-liter V8 of 302 horsepower, a 5.3-liter V8 of 315 horsepower, and a 6.2-liter V8 of 403 horsepower. All the V8s will run on gasoline or E85, a mixture of gasoline and 85-percent ethanol. All come with automatics; manual transmissions are not available.
The Regular Cab is designed for fleet buyers and others who want a basic truck for work, budget play, or a clean slate for customization. It can be equipped with a standard bed (6-foot, 6-inch) or a long bed (8-foot), two bucket seats or a three-person bench seat, V6 or V8 engines.
The Extended Cab has two rows of seats with rear-hinged rear access doors that open 170 degrees and have roll-down windows. The Extended Cab can be equipped with a short (5-foot, 8-inch), standard or long cargo bed, and with seating for five or six people.
The Crew Cab has two rows of seats and four front-hinged doors. It can be equipped with seating for five or six and comes with the short bed.
Standard equipment on the basic Work Truck ($20,850) includes vinyl seating surfaces, air conditioning, AM/FM/XM radio, daytime running lights, tire pressure monitoring system, Smooth Ride suspension, 17-inch wheels, and chrome bumpers. The 4.6-liter V6 engine is standard.
Sierra SL ($28,340-$33,715) is available in Extended Cab and Crew Cab trim levels, and adds a CD player with MP3 capability, deep tinted glass, OnStar, chrome grille surround, body-side moldings, styled steel wheels, cruise control, remote keyless entry, cloth upholstery, and power mirrors, windows and door locks. The 4.8-liter V8 is standard.
Sierra SLE ($27,225-$35,025) adds premium cloth upholstery, auto-dimming rearview mirror with compass and outside temperatures, leather-wrapped steering wheel, handling/trailering suspension, carpeting, a six-speaker audio system, illuminated visor vanity mirrors, and alloy wheels. Available options include dual-zone air conditioning, a floor console, power driver and front passenger seats, audio controls on the steering wheel, and machined aluminum wheels.
Sierra SLT ($35,780-$42,275) adds leather seat trim, a unique instrument panel, upgraded audio system with Bose premium speakers, heated windshield washers, Bluetooth, front bucket seats with 10-way power adjustment and heat, fog lamps, dual-zone climate control, rear window defogger, remote start, polished aluminum wheels, and the 5.3-liter V8 engine. Crew Cab models also get a rear-seat audio system.
Sierra Denali ($43,285) includes a top-flight interior with leather, unique woodgrain console, park assist and the standard luxury and convenience features from the preceding trim levels. The options include a heated steering wheel, heated/cooled front seats, sunroof, and rear-seat entertainment. The Denali comes only as a Crew Cab with the 403-horsepower 6.2-liter V8 engine, six-speed automatic transmission and rear or all-wheel drive.
Sierra Hybrid, available as a Crew Cab only, uses a 332-horsepower 6.0-liter V8 in conjunction with a battery pack and four-speed automatic transmission that houses two electric motor units. With EPA ratings in the 21-22 mpg range its urban economy is the best of the Sierras, the compromises being price, payload (maximum in the mid-1400-pound range) and maximum towing capacity around 6000 pounds.
Options include a locking rear differential, towing and trailering equipment, and a power sunroof.
Safety features include dual front airbags, head-curtain airbags that automatically inflate when sensors sense a severe impact to provide extra protection in the event of a rollover or secondary collision, driver and front-seat passenger side-impact air bags, anti-lock brakes, StabiliTrak electronic stability control with rollover mitigation technology, and tire-pressure monitoring. The optional Autotrac active transfer case, ultrasonic rear park assist, and OnStar emergency notification can further enhance safety, as can the all-wheel-drive system on the Denali.