2003 Gmc Sierra 3500 Dually 8.1 Liter Allison Transmission on 2040-cars

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Supercharged 2015 GMC Yukon Denali sounds evil, runs 0-60 in 4.5 seconds

Speeding along in a sports car is undoubtedly a ton of fun, but some owners need the ability to carry a lot of people and their stuff and don't want to sacrifice the ability to put the power down. The tuners over at Hennessey have that demographic covered with their growling, supercharged power kits for the GMC Yukon Denali. The upgrades come in three forms for the SUV's 6.2-liter V8: HPE550 with 557 horsepower, HPE600 with 605 hp and HPE650 with 665 hp. This video showcases the full-bore version, and this Denali can definitely hustle in a straight line. The power bump comes courtesy of a 2.9-liter supercharger, intercooler and high-flow cylinder heads to add over 200 horsepower compared to stock, and the final result is a bellowing SUV that rears up off he line to throw the driver back into the seat. The sprint to 60 miles per hour lasts just 4.5 seconds. Check out this hasty hauler in action in the video above.

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.

2015 GMC Sierra Elevation Edition Beauty-Roll

For those of you paying attention, we've really ramped up the old Autoblog video game these days. Our new series Car Club USA joins Translogic and The List, and there are more Daily Drivers and Short Cuts than ever. But sometimes, all you care about is the car. The Autoblog Beauty-Roll video series has one goal: bring you glossy video images of cars, and nothing but. We're collecting moving pictures of all the cars we test, inside and out. Each episode comes with a hit of engine sound – start-up and with a few revs – to round out the package. Set your resolution to max, kick it into full-screen, turn up the sound, and enjoy today's subject, the 2015 GMC Sierra Elevation Edition. Oh, and if you'd like more Beauty-Roll, click here to see the back catalog.