Srt8 Yellow Jacket, Ltd Edition, 6 Speed Manual, 392 Hemi With 470hp, 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!"

2015 Dodge Challenger SRT Hellcat has 707 glorious horsepower [w/video]

Hold onto your butts. "600-plus horsepower" is what we were told to expect from the 2015 Dodge Challenger SRT with its 6.2-liter supercharged Hellcat V8 engine. But as we've just learned, those were incredibly conservative numbers. Dodge has officially announced that the range-topping Challenger will hit the asphalt with 707 - seven hundred and seven - horsepower, making it the "most powerful muscle car ever."
Of course, 707 hp is only part of the story, as the Hellcat has also been confirmed to produce 650 pound-feet of torque. All that power will run exclusively to the rear wheels through an eight-speed automatic transmission that differs from other Challengers. The new gearbox, 8HP90 (rather than the 8HP70) is "upgraded to handle the extra power and torque," says Dan Reid, SRT's manager of product design and motorsports.
We certainly hope you're prepared to spend a ton of money replacing tires.

Amazon opens contest for The Grand Tour tickets in the US

British enthusiasts already had the opportunity to win tickets to the first taping of The Grand Tour, and now Amazon has opened up a similar chance for customers in the US. In celebration of Prime Day, which starts today, customers in the US can enter The Grand Tour Prime Day Prize Draw. The prize includes travel, $200 to spend, accommodation, and a meet and greet with Jeremy Clarkson, Richard Hammond, and James May. Customers that are interested fulfilling a childhood dream should visit Amazon's website and fill out the entry form soon as the draw closes on July 12. The Grand Tour will launch this fall as an exclusive for Amazon Prime members with the exact city locations for studio records set to be revealed later this summer. Amazon, however, did reveal that the trio will host shows in the UK, US, and Germany. So there's no need to get too upset if you don't win the draw. With Top Gear getting a major shakeup with the departure of Chris Evans, we're itching to see Clarkson, Hammond, and May behind the wheel of cars again. The trio, it seems, is also excited to get the new show rolling as Clarkson posted a drifty video on his Facebook page. The trio are currently in Italy filming a comparison between an Aston Martin DB11, a Dodge Challenger SRT Hellcat, and Rolls-Royce Dawn. The five-second clip has the Challenger Hellcat and DB11 drifting head-on into the camera crew, which is behind the wheel of an Alfa Romeo. News Source: Amazon, FacebookImage Credit: The Grand Tour TV/Movies Alfa Romeo Aston Martin Dodge the grand tour