2008 Chevrolet Impala Lt Sedan 4-door 3.9l No Reserve 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!"

Callaway debuts its new C7 Stingray at National Corvette Museum

Callaway showed off its first tuned version of the 2014 Corvette Stingray at the National Corvette Museum last week, giving the rampant enthusiasts of America's sports car a look at the roughly 620-horsepower, supercharged rocket.
Unlike the Corvette SC610 we showed you back in January, this Stingray packs a fair bit more oomph. Horsepower is only up ten ponies, but torque has jumped from 556 pound-feet to "at least" 600 pound-feet. Neither horsepower nor torque is official quite yet, although Callaway is expecting to know just what its creation can do once testing and validation is completed later this month.
The 6.2-liter, supercharged V8 now boasts a new, three-element intercooler, which Callaway claims only allowed the inlet air temperature to increase by ten degrees Fahrenheit during dyno runs. Previous designs saw a 35-degree-Fahrenheit jump. The exhaust system has also been fettled with, and now is even less restrictive.

Chevrolet Malibu gets across-the-board price cuts, hopes to dig out of slump

To say that things aren't going well for the newly redesigned 2013 Chevrolet Malibu is a pretty sizable understatement. Reports have been swirling about the Malibu getting an emergency design refresh, less than a year after its introduction, as well as having its production at the Fairfax Assembly Plant halted twice already this year for excessive inventory. Now, Motor Trend is reporting that the midsize sedan will be receiving price drops across the board ranging from $300 on a number of models up to $770 on the 1LT trim; offsetting some of MSRP drop, though, the destination charge has increased from $760 to $810.
Without destination, the entry-level Malibu LS now starts at $21,995, which is still about $300 more than a Honda Accord and about $300 less than the segment's top-selling Toyota Camry. This new pricing also drops the price of the Eco, 2LT and 3LT trims by $300. The LTZ trim has dropped by $415, meaning that the Malibu's top dog now starts at just under $30,000, excluding destination.
Here are the new starting prices for all eight of the Malibu trim levels compared to the previous prices for the 2013 model year (including destination):