GMC New Truck Model Guide
The GMC Division of General Motors puts out powerful pickups in three sizes for 2009 and sport utility vehicles (SUV) in two formats, plus stretched and deluxe treatments. GMC also has a big crossover utility vehicle (CUV) with Acadia. A new entry for 2009 is the Sierra Hybrid truck, featuring a two-mode hybrid propulsion system to boost fuel economy.
Sierra full-size trucks in half-ton 1500 series for 2009 include three cab configurations and three bed lengths, multiple suspension setups and five different powertrains. Base engine is a 4.3-liter V6 pumping 195 hp or 4.8-liter V8 with 295 hp. A flex-fuel 5.3-liter V8 worth 315 comes in iron or aluminum with GM's Active Fuel Management (AFM) technology on tap to trim fuel consumption. Models culminate with deluxe Sierra Denali, which stocks a 6.2-liter V8 producing 403 hp. Denali's big V8 shows up as an optional plant on the 2009 Sierra SLT Crew Cab.
The new hybrid electric vehicle (HEV) off a Sierra 1500 full-size truck stocks a two-mode hybrid propulsion system, which includes two 60-kW electric traction motors packaged as components of GM's new electrically variable transmission (EVT). At low speed, the truck can move using one of the electric motors or a gas-fired 6.0-liter V8. At highway speed, the second mode works with all eight cylinders of the V8 firing when commanded, or with only four cylinders operating through AFM technology to conserve on fuel. Sierra the HEV can pull a trailer weighing up to 6,100 pounds.
2500 / 3500
GMC's heavy-duty work trucks under the Sierra badge muster massive strength from gasoline and diesel engines teamed with six-speed automatic transmissions. The series includes 2500HD (three-quarter-ton) and 3500HD (one-ton) trucks with cabs of regular and extended lengths plus the Crew Cab, two traction systems, two lengths for the truck box and choices for a gasoline-driven V8 or the 6.6-liter Duramax turbo-diesel. That turbo-diesel hitches to a remarkable Allison 1000 six-speed electronic automatic. Maximum trailer tow weight for Silverado HD trucks climbs to 13,000 pounds for the Sierra 3500 Crew Cab with dual rear wheels.
GMC's Canyon pickup measures as a mid-size truck with styling reflecting design cues borrowed from Sierra. Cabs conform as a two-door Regular Cab, the Extended Cab with two rear-hinged doors, and Crew Cab with four front-hinged doors. Improvements in performance characterize Canyon models for 2009, including a new 300-hp 5.3-liter V8 option on Extended Cab and Crew Cab models. The base 2.9-liter four-cylinder plant with VVT (variable valve timing) delivers 185 hp, while a 3.7-liter five-cylinder VVT plant climbs to 242 hp. XM satellite radio service drops into 2009 Canyon SLE and SLT editions as standard.
The big CUV for GMC has a full-size passenger compartment stocking seats for six to eight on three rows. Power is supplied by GM's new 3.6-liter V6 with VVT for 288 hp through a fuel-saving Hydra-Matic 6T75 six-speed automatic. Acadia offers front-wheel-drive (FWD) traction or GM's Active On Demand AWD system. The CUV offers trim grades of SLE and SLT, plus SLT-1 and SLT-2 equipment packages. StabiliTrak skid controls are aboard, as is Bluetooth connectivity. Acadia's option sheet lists a triple-zone climate system, power liftgate, dual-panel Skyscape sunroof and a DVD-based video entertainment player.
The mid-size SUV from GMC for 2009 has a regular-length wheelbase with two rows of seats in the cabin for a capacity of five. A deluxe variation — Envoy Denali — brings more comforts and choices for two-wheel-drive (2WD) or four-wheel-drive (4WD) traction. Denali totes a 5.3-liter V8 rated at 300 hp. Envoy's powertrain is a 4.2-liter in-line-six worth 285 hp. Stock gear ranges from StabiliTrak electronic stability controls and Proactive Roll Avoidance (PRA) to Bluetooth phone connectivity for hands-free calling. A Bose audio package and touch screen navigation system line the list of optional equipment.
GMC's full-size SUVs consist of Yukon and stretched Yukon XL, plus deluxe companions Yukon Denali and Yukon XL Denali. Denali editions are lined with leather and offer on-demand all-wheel-drive (AWD) traction via GM's automatic Autotrac system. Powerful engines propel the wagons, including a 5.3-liter V8 with AFM technology for 310 hp and Denali's 6.2-liter VVT V8 ripped to 403 hp. A six-speed automatic transmission applies to all Yukon’s stocking the 5.3-liter or 6.0-liter V8, along with standard StabiliTrak skid controls.
The HEV version of Yukon uses GM's two-mode hybrid propulsion system. The HEV looks identical to a conventional Yukon, save for strips of door decals denoting the hybrid nature and special badges in chrome. Under the hood is a big 6.0-liter V8 sipping gasoline and making 332 hp, along with two 60-kW electric traction motors tucked inside GM's new EVT. The point of putting all of this hybrid equipment on a big SUV like Yukon is to trim the powertrain's fuel consumption. GM tests indicate that Yukon Hybrid earns fuel economy figures up to 21 mpg.
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