2010 GMC Sierra 1500 is alongside the nearly identical Chevrolet Silverado. The Sierra’s wide, tall grille is its hallmark, with big GMC lettering inside; the boxy flares around its fenders are subtle reminders that this is the same brand that sells the extreme-looking 2010 Terrain crossover.
Inside the Sierra’s cabin, some models have a simple, upright design with larger controls and door handles-better suited for work duty-while pricey versions have an interior that would fit in a luxury sedan. The upgraded instrument panel has a smoother, lower design, as well as surfaces and materials that come together nicely.
The 2010 GMC Sierra Hybrid is more of the same; unless it’s fitted with the optional hybrid decal package and the hybrid LCD readouts, observers will likely not notice it as different from a standard Sierra pickup. The 2010 model year brings only minor changes to the Sierra, including revised interior door panels.
2010 GMC Sierra 1500 offer some powertrains option, There’s also a flex-fuel 5.3-liter V-8 with 315 hp and cylinder deactivation for improved fuel economy, which is standard in XFE models and available in other versions. The most expensive Sierra pickups get a 6.2-liter, 403-hp, flex-fuel V-8 that also shows up in the swank Cadillac Escalade. The 5.3-liter as it has plenty of power for most needs without much lower fuel economy than the base V-6. The base V-6 and base V-8 are teamed with a four-speed automatic; all other versions have a six-speed automatic that shifts very smoothly, helps achieve better fuel economy, and cuts down on noise. The Sierra gets up to 15/22 mpg in the XFE edition, falling to only 12/19 mpg in loaded versions.
