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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.

2020 GMC Sierra Heavy Duty First Drive Review | King of the haul

JACKSON HOLE, Wyo. — The 2020 GMC Sierra Heavy Duty is a bit of a mixed bag. It excels at the tasks an owner is likely to require from a massive pickup truck, but the interior is a definite letdown. Taken as a whole the truck boasts several class-leading specifications and features that make up for the lackluster look and feel of the cabin. And it's much more successful than the mechanically similar Chevy Silverado HD, which shares the Sierra's weaknesses but few of its subjective strengths. GMCÂ’s Sierra HD may share most of its major bits and pieces with the Silverado, but the strongest reason to pick the GMC over the Chevy is that the SLE and SLT trims of the Sierra HD are legitimately handsome. And the rugged, off-road-themed AT4 package is new for 2020 with a blacked-out look that we think a lot of buyers are going to love. Even the ostentatious, chrome-dipped Denali trim looks classy compared to the in-your-face look of FordÂ’s Super Duty line. The same canÂ’t be said for the Silverado HD, which, depending on trim level, varies from garish to just plain ugly. The six-function MultiPro tailgate is the next major differentiator. ItÂ’s not perfect — and mounting a hitch ball in the receiver renders some of its functionality unusable — but itÂ’s unique and potentially very useful to a subset of truck customers. WeÂ’ve covered MultiPro several times already, but if youÂ’re still not clear on its advantages, watch the video below for a demonstration (that's a light-duty Sierra in the video, but the tailgate works the same). This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. Another unique selling proposition is the AT4 trim, since Chevrolet doesnÂ’t (yet) offer its Trail Boss package on the Silverado HD. The most obvious competitor to the Heavy Duty AT4 is the Ram Power Wagon, and the GMCÂ’s 3,615 pounds of payload and 18,500 pounds of towing capability handily outdo the RamÂ’s ratings of 1,660 and 10,620. Granted, the trucks arenÂ’t aimed at quite the same buyer — the Power Wagon has legit off-road credibility thanks to upgrades like its electronically disconnected sway bars, 12,000-pound Warn winch, and a forward-facing trail camera. But unlike the GMC Sierra AT4, it isnÂ’t available with a diesel. No matter; those aiming for a rough-and-tumble appearance in a heavy duty now have a couple options.

2.0-liter turbo four reportedly returning to Chevrolet Equinox line-up for 2022

Chevrolet's popular Equinox crossover will enter the 2021 model year with comprehensive updates and a turbocharged, 1.5-liter four-cylinder as its only available engine. The 2.0-liter turbo four offered through 2020 is allegedly leaving the line-up, but it will be replaced for 2022 with a newer engine that produces slightly less power while returning better fuel economy, according to a recent report. Called LSY internally, the new 2.0-liter turbo four already powers the Cadillac XT4, among other models in the General Motors portfolio. Enthusiast website GM Authority learned it will deliver 237 horsepower at 5,000 rpm and 258 pound-feet of torque from 1,500 to 4,000 rpm. For context, the 2.0-liter available through 2020 (known as LTG) made 252 horses and 260 pound-feet of twist, and the 1.5-liter posts figures of 170 and 203, respectively. As a trade-off for the slight drop in horsepower and torque, the LSY is smoother, quieter and cleaner than the LTG it replaces. Transmission options remain unconfirmed, but the four-cylinder will likely shift through a nine-speed automatic. Front-wheel drive will come standard, and all-wheel drive will be offered at an extra cost. Chevrolet hasn't commented on the report; it hasn't even confirmed the Equinox is losing the LTG engine for 2021. If the rumor is accurate, details about the 2022 Equinox should be released during the first half of 2021. GM Authority added the GMC Terrain, which is closely related to the Equinox, will receive the new engine for 2022 as well. Both should have gotten it for 2021, but the on-going global pandemic delayed its launch. Related Video: