NEW FOR 2008:
 

 Click image to enlarge Images courtesy: GMC
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- Yukon Hybrid model (interim introduction) with GM's new 2-Mode hybrid system
- Curtain airbags standard on all models
- StabiliTrak and six-speed automatic transmission standard on Yukon XL 2500 models
- 17-inch wheels available on Yukon XL 2500 models
- Standard remote starter and power sunroof on Denali
- Exterior colours: Stealth Gray Metallic and Sonoma Red Metallic (Yukon); Red Jewel Tintcoat and Dark Slate Metallic (Denali)
Completely redesigned in 2007, the GMC Yukon and the upscale Denali model receive tweaking for 2008. The big news is an upcoming Hybrid model, which will use a 6.0-litre V8 with Active Fuel Management, lightweight materials, and GM's new 2-Mode hybrid system, for an estimated fuel economy improvement of up to 25 per cent over the conventional model.
GMC's version of the Chevrolet Suburban, the model line comes as the Yukon, in two- or four-wheel drive; the longer-wheelbase Yukon XL in 1500 and 2500 configuration; and the top-of-the-line Denali, in regular or XL length, with full-time all-wheel drive. Depending on the model, seating ranges from five to nine passengers.
Engine choices in the Yukon are a 5.3-litre V8 with four-speed automatic transmission, or 6.0-litre V8, with six-speed automatic. The 4.8-litre V8 engine offered in 2007 is no longer available. The Denali models exclusively use a 6.2-litre V8 with six-speed automatic.
Features on the Yukon SLE include 17-inch aluminum wheels, tri-zone manual climate control, black assist steps, deep-tinted windows, heated mirrors, roof rack side rails, recovery hooks, variable intermittent wipers, rear washer/wiper, cruise control, floor mats, rear auxiliary heater, tire pressure monitoring system, auto-dimming rear-view mirror with compass and temperature gauge, leather-wrapped tilt wheel with audio controls, 40/20/40 front bench with six-way power driver's adjustment, second-row 60/40 split bench, CD/MP3 stereo, power locks with keyless entry, theft-deterrent system and OnStar.
The SLT adds tri-zone automatic climate control, fog lamps, roof rack cross bars, centre floor console, power-adjustable pedals, garage door opener, six-way power leather bucket seats, six-CD/MP3 stereo with auxiliary jack, second-row audio controls, and rear parking assist.
The Denali adds 18-inch aluminum wheels, power liftgate, power-folding heated mirrors with driver's side auto-dimming, puddle lamps, reverse tip-down and integrated turn signals, power sunroof, rain-sensing wipers, heated washer fluid system, ten-way heated leather seats, third-row 50/50 split-bench removable seat, and XM Satellite Radio.