2013 Denali Used Turbo 6.6l V8 32v Automatic 4wd Bose Onstar on 2040-cars

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2018 GMC Acadia with 'Christmas Aero' modification gets in the wind tunnel

Tis the season of "Big" - big cheer, big parties, big bowls of eggnog, big decorations, and when it comes to your family hauler, big drag. Festive drivers who festoon their crossovers, minivans, and SUVs with wreaths, Rudolph noses, fuzzy antlers, and rooftop Christmas trees undo the years of work that car engineers devote to fractional gains in fuel economy. To put numbers to such fuel-guzzling madness, GMC started with a 2018 Acadia, optioned it with the Xmas Aero Package - both Standard and Plus versions - put it in Lockheed-Martin's wind tunnel. The resulting dip in fuel economy results probably won't surprise anyone who's used a roof rack - or, for that matter, their car's air conditioning. However, it might surprise you to find out which seemingly substantial decoration had no effect, and which seemingly innocuous decoration was about twice as bad as running the A/C on its Mr. Freeze setting. Check out the brief video above for the results. And consider placement of that bow carefully.

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.

2021 Chevy Colorado and GMC Canyon facelift spied

The Chevy Colorado and its GMC Canyon twin have been on sale for a good long time now, and while things move a little more slowly on the truck side when it comes to facelifts and model changeovers, it seems like it’s about time. So itÂ’s no surprise to see some lightly camouflaged trucks running around ahead of what appears to be a minor refresh for the 2021 model year. Starting with the Colorado, it appears to have a bowtie hiding behind some camo in the center of the grille, which otherwise looks like the no-bowtie option you can get on 2019-and-up trucks. It could be that Chevy is keeping the no-bowtie grille design but allowing a bowtie to grace it, or it could be misdirection. Either way, the grille pattern adds a bit of flair to the otherwise staid front end design. There also appears to be a bit more shape to the lower air inlet, with echoes of some of the lower fascias of its bigger Silverado stablemate. The Canyon, on the other hand, shows more extensive front-end changes. At first glance, it looks to emulate some variants of the GMC Sierra, which would make sense given those modelsÂ’ changes for the 2020 model year. In particular, this Canyon has hints of Sierra HD, being more square and monolithic than the regular Sierra 1500s, although itÂ’s a little hard to tell with the camo covering the edges of the grille. It could certainly also adopt more rounded corners like the 1500s. Either way, itÂ’s more vertical and thereÂ’s less differentiation between the upper grille and lower opening. ThereÂ’s nothing in the way of changes around the sides or back, and while there may be some minor changes inside, we arenÂ’t expecting any. The word around town is that this isnÂ’t a full facelift, but rather a minor front end tweak thatÂ’ll just be a regular part of the model-year changeover.