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GM 6.2L EcoTec V8 rated at 21 mpg by the EPA

General Motors is already laying claim to best-in-class power for its new 6.2-liter V8 that will be offered in the 2014 Chevy Silverado and GMC Sierra this fall, and now it has released fuel economy numbers for the big engine. Available as an option on the Silverado LTZ and High Country (shown above) models as well as the the Sierra SLT and Denali trims, the 6.2L EcoTec3 V8 will return 15 miles per gallon in the city and 21 mpg on the highway on rear-wheel-drive trucks; these numbers drop by one mpg each on four-wheel-drive models.
These estimates are in addition to the engine's 420 horsepower, 460 pound-feet of torque and max trailering capacity of 12,000 pounds, and considering all that power it's not terribly far away from the fuel economy of GM's equally new 4.3-liter V6 and its rating of 18 mpg city and 24 mpg highway. This announcement comes just days after a report indicated that GM is unable to keep up with the demand of the 5.3-liter V8 in the fullsize Chevy and GMC trucks due to supplier issues. GM's official press release for the 6.2-liter V8's fuel economy is posted below.

2015 GMC Yukon Denali

Automotive enthusiasts often wonder aloud - ourselves included - why General Motors would choose to keep GMC while sending Pontiac (and Saturn, and even Oldsmobile before it) into the great automotive graveyard in the sky. The answer, as is so often the case, is profit. It's much easier for GM to rake in money hand over fist by rejiggering the trucks, crossovers and SUVs that it would already be developing for Chevrolet and making them a bit more luxurious and *ahem* "Professional Grade" with new grilles, badges and unique packaging for GMC.
While it may sound like we're being cynical, we totally approve of GM's fullsize SUV strategy. The least-expensive way to get into the fold is with the Chevrolet Tahoe, which starts at $45,595 with a 5.3-liter V8 engine and a cloth interior. Bumping that same Chevy to LTZ trim and its $59,995 sticker price lands a much nicer leather-clad interior and more techno-bells and whistles than you can shake a stick at. But it still looks like a Tahoe, and it still comes with the smaller 5.3-liter engine. Or, you could do what we'd do: Walk into your GMC dealer and take a look at the Yukon Denali. Here's why.
Driving Notes

2015 GMC Canyon is a Chevy Colorado in Sierra clothing [w/video]

Ford may not offer the Ranger in America anymore, nor Dodge (or Ram) its Dakota. But General Motors - not unlike Toyota with its Tacoma and Nissan with the Frontier - isn't about to give up on the midsize pickup market. Less than two months ago, it revealed the new Chevrolet Colorado, and now it's following up with its mechanical twin, the 2015 GMC Canyon.
Launched today ahead of its reveal at the Detroit Auto Show, the Canyon slots into the GMC lineup (and differentiates itself from its Chevrolet twin) with styling that closely apes the larger GMC Sierra 1500 and Sierra HD, only a size or two smaller. Oh, there are visual differences, like a subtly different grille treatment and lower fascia, but it still maintains its big brother's square-jawed good looks and rectilinear flared fenders.
Two aluminum-block engines with direct injection and variable valve timing are available: a 2.5-liter inline-four comes standard with 193 horsepower and 184 pound-feet of torque, and a 3.6-liter V6 is available with 302 hp and 270 lb-ft. Buyers will also be able to choose between three bodystyle configurations, three trim levels and either two- or four-wheel drive. A six-speed automatic transmits the power to the road, but a six-speed manual is available on the base model with the 2.5 and 2WD, and there's an All Terrain package available on SLE models. A diesel is expected later.