2010 Gmc Yukon Xl 1500 Denali on 2040-cars

Auto blog

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 is the latest automaker accused of diesel emissions cheating

Volkswagen and Ram need to make room on the diesel-emissions bench for General Motors. America's largest automaker was accused in a lawsuit on Thursday of rigging hundreds of thousands of diesel trucks with at least three so-called defeat devices to ensure that the trucks would meet federal and state emission standards, even if they generated more pollution in real-world driving. According to the complaint, on-road emissions testing conducted for the plaintiffs found that Duramax-equipped trucks produced NOx pollutants, comprised of nitrogen and oxygen atoms, two to five times higher than legally permitted, and "many times" higher than their gasoline counterparts. The proposed class-action lawsuit was filed in federal court in Detroit on behalf of people who own or lease more than 705,000 Chevrolet Silverado and GMC Sierra pickup trucks fitted with "Duramax" engines from 2011 to 2016 model years. The lawsuit seeks remedies including possible refunds or restitution for lost vehicle value, plus punitive damages. It adds to legal problems for Detroit-based GM, which has already paid about $2.5 billion in penalties and settlements over faulty ignition switches linked to 124 deaths. GM joins at least five automakers whose diesel emissions have been scrutinized by regulators or consumers. They include VW, which has admitted to cheating; Mercedes-Benz parent Daimler; Fiat Chrysler Automobiles, Peugeot and Renault. GM spokesman Dan Flores called the claims "baseless," and said the trucks comply with US Environmental Protection Agency emissions standards and California's own tough standards. Shares of GM were down 69 cents, or 2.1 percent, at $32.50 in afternoon trading, after earlier falling to $31.93. The GM lawsuit was filed by several law firms, including Hagens Berman Sobol Shapiro, which helped reach multibillion-dollar settlements with VW on behalf of drivers and dealers. The case is Fenner et al v General Motors LLC et al, US District Court, Eastern District of Michigan, No. 17-11661. The named plaintiffs are Andrei Fenner of Mountain View, California and Joshua Herman of Sulphur, Louisiana. They said they would not have bought their respective 2011 Sierra and 2016 Silverado trucks, or would have paid less for them, had they known about the alleged rigging. Joseph Spak, an RBC Capital Markets analyst, in a research report said "negative publicity" from the lawsuit could drive buyers to trucks from Ford or even Fiat Chrysler's Ram.

Weekly Recap: Hyundai scores NFL sponsorship after GM exits

Hyundai replaced General Motors as the official automotive sponsor of the NFL with a four-season deal that was announced this week. Hyundai gets exclusive sponsorship rights for mainstream and luxury cars, though not for pickups – as it doesn't have one in its current portfolio. "There may be another automotive truck sponsor, but not one that competes with our vehicle lineup," a Hyundai spokesman said in an email. That leaves the door open for another truckmaker to enter the fray. GM used the NFL to promote its GMC division, which makes pickups and sport-utility vehicles. The Detroit automaker decided to quit the sponsorship, which it had held since 2001, a GM spokesman said. Financials were not released, but ESPN said the sponsorship will cost Hyundai $50 million a year, double what GM paid. It gives Hyundai access to NFL trademarks for use in its marketing and advertising, and Hyundai will provide promotional vehicles to the league for the Super Bowl and other events. Hyundai celebrated the agreement by lighting up its Fountain Valley, CA, headquarters this week with a football field and the NFL logo. Hyundai's sister company, Kia, is the official automotive sponsor of the NBA. "We are huge football fans at Hyundai and feel there is no better venue to reach consumers, increase consideration, and tell the Hyundai brand story," Hyundai Motor America CEO Dave Zuchowski said in a statement. Hyundai will officially kick off its sponsorship when the NFL season begins on Sept. 10 with a primetime game featuring the Pittsburgh Steelers and the Super Bowl champion New England Patriots. OTHER NEWS & NOTES Toyota Mirai rated at 67 mpge, 312-mile range The Environmental Protection Agency gave the Toyota Mirai hydrogen fuel cell electric car a 67-miles-per-gallon-equivalent rating. The figure is for city, highway, and combined driving. The EPA also said the Mirai will have a 312-mile range. The sedan will arrive in dealerships in California this fall and will cost $57,500, though incentives can drop the price significantly. The Mirai will also be offered as a $499-per-month lease. Both come with three years or $15,000 worth of free fuel. Toyota plans to expand sales to the Northeast United States later. Toyota's top female exec resigns in wake of arrest Meanwhile, in other Toyota news, the automaker's communications chief and top female executive, Julie Hamp, resigned.