2008 Chevrolet Impala Ls Sedan 4-door 3.5l 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!"

Valet mode captures joyride in red Corvette

A man in California is among the first to catch a valet behaving badly in his 2015 Corvette using a controversial built-in recording feature. Dan Cowles told KTLA 5 when he bought his dream car, a 2015 Chevrolet Corvette Stingray, he opted for the Performance Data Recorder. The Corvette PDR uses a high-definition camera mounted in the windshield header, a microphone in the cabin and a GPS receiver that record and track the sports car's movements and sounds. They work together to produce a video with telemetry overlay, so you can see acceleration rates, lap times and g-forces. The system can be customized to show extensive performance data, or simply video of your drive like a traditional dash cam. It also comes with Valet Mode, which locks the glove box, disables entertainment and records video. The audio recording feature ran afoul of several state's recording consent laws, but this video has no audio, indicating the fix may have been as easy as turning off the microphone. Cowles dropped off his hot red 'Vette with the valets at the Segerstrom Center for the Performing Arts in Costa Mesa, CA. When he got his car back he checked the PDR and discovered footage of the valet taking a short, but intense, joyride in the garage. In the video, the valet finds a straightaway in a tiered parking garage and pushes the car to 50 miles per hour in five seconds before quickly stopping. He then parks the car without incident. The valet then gets out of the car and takes one more admiring look at the front. The valet company has yet to commented on the video, according to Fox News, but valets everywhere should be on notice; that little red Corvette you have your eye on may have its eyes on you. Related Gallery Ward's 10 Best Engines of 2015 View 10 Photos Chevrolet Driving Classics valet parking

2014 Chevrolet Corvette Stingray priced from $51,995*

After months of speculation, Chevrolet has finally revealed the official starting price of the 2014 Corvette Stingray. The base MSRP for the 450-horsepower Stingray Coupe will be $51,995, while the Stingray Convertible will go for $56,995 (*both prices include a $995 destination fee). This means that the price increase from 2013 to 2014 is just $1,400 for the coupe and $2,395 for the convertible - pretty modest increases considering the upgrade in specifications. Of course, neither price accounts for the sort of dealer markup that might grace early C7 window stickers, especially since less than a third of all Chevrolet dealers will be allocated Corvette models to sell at the car's launch.
Now, these prices are for the base car, so if you're wondering how much a fully loaded Stingray will run, Chevy has given us a good indication of that as well. The coupe we saw on display at the Detroit Auto Show (shown above), for example, would run $73,360 including options such as the $2,800 Z51 Performance Package, $2,495 competition sport seats and the $1,795 Magnetic Ride Control option - just to name a few. Stepping up to the 3LT trim level that brings a full leather interior will run an extra $8,005 over the base price.
While $20,000 in options may seem like a lot, this "as-tested" price still has the C7 competitively priced against rival coupes like the Porsche 911 and Nissan GT-R. Speaking of price comparisons, Chevrolet also points out that the C7 Stingray Z51 costs $2,200 less than the C6 Grand Sport while delivering better acceleration (0-60 mph in less than four seconds) and improved track performance (including more than 1 g in cornering).