Adding 15 more inches in length and wheelbase, the 2008 GMC Canyon Work Truck Extended can offer a second row of jump seats, though these are more suited for children or pets than adults. Access to the second row is through rear three-quarter, reverse-hinged doors. Though it has the added row, the extra inches means the mid-size pickup truck's bed remains 6 feet long. This rear-wheel drive model comes standard with a 185-hp, 2.9-liter I4 or optional 3.7-liter, 242-hp I5. A 5-speed manual or 4-speed automatic are the available transmissions. It rides on 15-inch wheels with all-season tires and a front independent and solid live axle rear suspension.

Standard safety features include side impact door beams, dual front airbags with passenger sensors, 4-wheel disc and ABS brakes with electronic brakeforce distribution, automatic headlights, and a tire monitor. Side curtain airbags for both rows, OnStar, foglights, a locking rear differential, and traction control can be added. Cruise control, tilt steering, power steering, intermittent wipers, a radio, air conditioning, and a tachometer represent the standard features. Cupholders and power outlets are only up front. The bed comes with tie-downs and a tailgate that folds out to either 55 or 90 degrees, offering loading versatility. Interior options on the 2008 Canyon Work Truck Extended are limited to cloth seats and a CD/MP3 player.