Engine: 6.0-liter ohv V8

Engine Options: 195-hp 4.3-liter ohv V6; 285-hp 4.8-liter ohv V8; 295-hp 5.3-liter ohv V8; 310-hp 5.3-liter ohv V8; 300-hp 6.0-liter ohv V8; 345-hp 6.0-liter ohv V6

Transmission: 4-speed automatic

Transmission Options: 5-speed manual, 4-speed automatic

Standard Safety Equipment: dual-stage front airbags with front passenger suppression switch, ABS with Dynamic Rear Proportioning, LATCH-style child-seat anchors

Optional Safety Equipment: traction control

Basic Warranty: 3 years/50,000 miles

Assembled In: Pontiac, Michigan; Flint, Michigan; Ft. Wayne, Indiana; Oshawa, Ontario, Canada

Model Tested: GMC Sierra Denali ($41,735)

Standard Equipment: automatic dual-zone climate control; AM/FM/CD/cassette Bose 7-speaker system with 6-disc in-dash CD changer, rear audio controls w dual headphone jacks; power windows w/driver's express-down; door locks, programmable power w/lockout protection; tilt steering column; front, tone-on-tone leather power heated reclining full feature bucket seats with power lumbar, dual inboard armrests, 2-position driver-side memory; 3-passenger 60/40 folding rear bench seat w/leather inserts; floor mats; electrochromic rearview mirror w 8-point compass; driver information center; HomeLink; Gen6 OnStar, 1 year safe and sound service; interior lights, Dome, reading, rear map, courtesy lights and ground illumination; cruise control; 12-volt accessory outlets (2); leather wrapped steering wheel rim; steering wheel mounted audio and driver information controls; mini overhead console w/map lights; floor console w/storage; rear cupholders and rear power points; theft deterrent system, PASSLock II; remote keyless entry w/2-transmitters; color-keyed soft tonneau cover

Options as Tested: XM Satellite Radio ($325); trailering equipment ($210)

Destination Charge: 850

Gas Guzzler Tax:

Layout: all-wheel drive

Horsepower: 345 @ 5200

Torque: 375 @ 4000

Miles Per Gallon in the City/Highway: 12/16

Wheelbase: 143.5 inches

Length/Width/Height in Inches: 230.2/78.5/75.0 inches

Track Front/Rear: 65.0/66.0 inches

Turning Cycle: 46.1 feet

Seating Capacity: 5 people

Head/Hip/Leg Room, f: 40.7/61.4/41.3 inches

Head/Hip/Leg Room, m: inches

Head/Hip/Leg Room, r: 40.2/62.9/39.1 inches

Trunk Volume: cubic feet

Payload: 1722

Suspension, f: independent, SLA with torsion bars, anti-roll bar, gas-pressurized shocks

Ground Clearance: 8.7 inches

Curb Weight: 5478 pounds

Towing Capacity: 8100 pounds

Tires: P265/70R17

Brakes: disc/disc with ABS and Dynamic Rear Proportioning

Fuel Capacity: 26.0 Gallons