The 2008 GMC Yukon is a full-size SUV that's available in two main trim levels: base SLE and ultra-plush Denali. Seating configurations range from five to nine passengers. The SLE is far from bare-bones, as it comes with 17-inch alloy wheels; foglamps; full power accessories; front bucket seats with a console; OnStar telematics; keyless entry; a six-way power driver seat; dual-zone air-conditioning; a trip computer; and an eight-speaker CD audio system with satellite radio, an auxiliary input jack and rear-seat controls. If you prefer a 40/20/40-split front bench seat (with built-in storage compartments) and can do without a few features such as foglamps and rear audio controls, the de-contented SLE with the 3SA package will save you some green versus the standard SLE.If you want more luxury, however, consider either of the SLT option packages: SLT1 and SLT2. Choose SLT1 and the following are added: leather seating, triple-zone automatic climate control, a six-disc CD changer, power-adjustable pedals, remote vehicle start, rear parking assist and the "Turn-by-Turn" navigation feature for the OnStar system. The SLT2 adds a premium Bose sound system, 12-way (versus six-way) power/heated front seats, power-folding mirrors with turn signals, and a 50/50-split third-row seat. The high-line Yukon Denali features all of the above plus a unique grille, 18-inch alloy wheels, an adaptive suspension (with a rear load-leveling feature), a power liftgate and heated second-row captain's chairs.
Many of the Denali's extra features are optional on the Yukon SLE. Options for both trims include a navigation system, power-folding second-row seats, a rear-seat DVD entertainment system, a rearview camera and 20-inch wheels. A heated steering wheel is an exclusive option for the Yukon Denali.