2016 GMC Sierra 1500 Denali 6.2L V-8 4×4 Tested: The One with Eight Speeds

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The spread of General Motors' eight-speed automatic transmission through the GMC Sierra 1500 lineup is nearly complete. Introduced to the Sierra in 2015 paired only with the biggest engine available, a 420-hp 6.2-liter V-8, the eight-speed has since become an option on certain Sierras equipped with the 5.3-liter V-8, tracing a path through the Sierra family similar to the same transmission's injection into the Chevrolet Silverado lineup. Our first test of the GMC with the eight-speed comes in a 2016 Sierra 1500 Denali with the available 6.2-liter V-8, which sets up a neat comparison—we tested a nearly identical 2014 Sierra Denali 4×4 with the same engine and the old six-speed automatic two years ago. READ MORE ››

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from Car and Driver Blog http://ift.tt/nSHy27

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