2011 Ford F-150 Xlt Super Crew, 6.5' Bed, 3.5l Ecoboost 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 Ford Mustang Convertible makes inappropriate appearance in Detroit [w/video]

With the polar vortex fresh in the minds of Autoblog's Detroit-based staff, we're finding it funny that any manufacturer would choose January in the Motor City to show off a new and highly anticipated convertible to the general media and public for the first time. But Ford has done just that, giving us our first real peek at the new Mustang Convertible in the flesh.
The new Mustang Convertible is more or less unchanged from the standard coupe, with some subtle styling tweaks to accommodate the retractable soft top. Engine and transmission choices are identical to the hardtop, although we should expect slightly lower performance due to the hardware for the roof. Like the coupe, neither prices nor performance metrics have been published yet for the convertible.
Hop up top for our live gallery of images from the floor of the Detroit Auto Show.

1947 Chevy rat rod pickup leaves rubber and smoke in its wake

Cool comes in multiple flavors. One one hand, we have the sophisticated attraction of svelte design and the efficient use of power. Of course, on the other hand there is the allure of being the bad boy and going against the grain. That is part of the appeal of rat rods. Ideally, they are built without rules to an owner's specific tastes, and this widened and heavily modified 1947 Chevrolet pickup rod is a perfect example of that spirit.
Coming down the highway with a bent grille, rusted body and pouring smoke, it looks like the pickup from hell. It backs up the looks with some very impressive mechanicals too. Owner Troy Gubser says that the truck packs a Ford Power Stroke diesel with to 42 pounds of boost that runs out of 8-inch exhaust stacks at the back. He claims it managed 505 horsepower and 885 pound-feet of torque on the dyno. To harness all that power, this hot rod has a ZF five-speed manual gearbox with a ceramic clutch and short-throw shifter. Plus, it has cool little features like a doorbell on the tailgate that operates an air horn.
You might not expect a truck like this to actually be useful, but it has a fifth wheel coupling to haul an RV around drag races and car shows. The air suspension also probably keeps the ride fairly comfy when Gubser wants it to be. Scroll down to check out this beastly rat rod pickup and watch it engage in some diesel drag racing. Warning, there is some NSFW language.