2011 Gmc Yukon Xl 1500 Denali Sport Utility 4-door 6.2l on 2040-cars

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Diesel Power finds the ultimate modified oil-burner

For nine years, Diesel Power magazine has run the Diesel Power Challenge, this year's grindfest being "a week-long torture test that features seven events, nine trucks, 8,000 horsepower, and nearly 15,000 pound-feet of torque." The road to being crowned "the most powerful truck" starts with a dyno run, and then continues through the completion of a CDL-style obstacle course, an eighth-of-a-mile drag race while towing a 10,000-pound trailer, a quarter-mile drag race without a trailer, a fuel economy test in the mountains and finally a sled-pulling test through a 300-foot-long packed-mud pit.
What kind of trucks get into such a fight? Last year's winner, for instance - who upgraded his truck this year to prove he didn't "luck into the win" - drives a 2008 Ford F-250 Super Duty with a 6.4-liter Power Stroke V8 upgraded with a custom intake, Elite Diesel triple turbos and a two-stage nitrous system. Another competitor has a 2005 Dodge Ram 2500 powered by a 5.9-liter Cummins inline-six, upgraded with Garrett turbos, dual-stage nitrous, a seven-inch exhaust stack and twin fans built into the bed to cool the Sun Coast Omega transmission. The numbers on that truck: 1,255 horsepower, and 2,063 pound-feet of torque at the wheels. Naturally, as the image above might suggest, things don't always end well.
You'll find all five videos covering this years challenge below. A scene in the dyno video sums it all up perfectly: a competitor leaves his nitrous on too long and the crew is treated to some ominous poppings, he leans out the window, throws both hands up and shouts, "Amer'ca!"

GM recalling 22K Silverado and Sierra trucks for seat issue

General Motors will recall 21,721 of its new 2014 Chevrolet Silverado and GMC Sierra pickups over front seats that could move if the vehicle is hit from behind. Affected vehicles all feature manual adjustments for the two front seats, according to a report from Automotive News.
Of the nearly 22,000 vehicles covered under the action, the overwhelming majority - 18,972 -- were sold in the United States. A further 2,575 were sold in Canada, while 103 were shipped south of the border to Mexico. Finally, another 71 were sold outside North America altogether. As of right now, there are no reports of injuries due to the defect.
Naturally, Chevy and GMC dealers will make the repairs free of charge, although it's not clear as of this writing if GM will be notifying owners or just addressing the issue at the truck's first service.

Forza Horizon announces January Recaro Car Pack with LFA N"urburgring Edition

Another month, another car pack for Forza Horizon. This time it's the Recaro Car Pack featuring a motley gang of cars and trucks: the 1983 GMC Vandura G-1500, 1995 Ford Mustang Cobra R, 2012 Cadillac Escalade ESV, 2005 Mercedes-Benz SLR, 2012 Lexus LFA Nürburgring Edition and 2012 Lotus Exige S.
It'll be up for download on Xbox Live on Tuesday, Jan. 1, 2013 for 400 MS Points. As usual, if you have the Forza Horizon Season Pass you can get them all free, and Season Pass holders will also get a bonus car that's not pictured: the 2009 Pagani Zonda Cinque Roadster.
The Pagani is everything opposite to that Vandura, but while you might not ever win anything with the van, you can always use the back of it as a place to give out free hugs. Check out the video and press release below for more details.