The GMC Sierra 1500 was completely redesigned in 2007, alongside the nearly identical Chevrolet Silverado, and because of its conservative but tasteful style, it still looks fresh today. It's a little plain, though-more assertive than the Chevy truck but not as arrogantly square as the Ford F-150, nor as butch and bold as the Dodge Ram. 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.
With such a broad range of refined and responsive powertrains, there's an engine choice for any buyer. The lineup starts with the base 195-horsepower, 4.3-liter V-6 installed in workhorse models. A flexible-fuel, 302-hp 4.8-liter V-8 is the first optional engine. 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 is TheCarConnection.com editors' pick, 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.