2015 Chevrolet Silverado 2500 Work Truck on 2040-cars

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Watch how Corvette Racing's new collision-avoidance radar system works

When it comes to technology used in racecars, we generally expect it to trickle down to production cars, not the other way around. Well, Pratt & Miller has developed a new rear-facing radar that operates in a similar fashion to what we're used to in modern blind spot detection systems, only it is also capable of tracking cars as they approach and relaying vital information to the driver via a large display screen.
The innovative radar system debuted at last weekend's 12 Hours of Sebring for Corvette Racing, and this system makes perfect sense for endurance races like this since the cars sometimes have to drive through the night and in poor weather conditions.
The radar can detect cars even with poor visibility, and uses easy-to-distinguish symbols for the driver to identify.

Watch NASCAR racer Jeff Gordon put one over on a used car dealer... sorta

Full Disclosure: in my younger days, I loved nothing more than tormenting passengers with my behind-the-wheel hijinks. Once, after a particularly artful handbrake turn on a two-lane at around 50 miles per hour, I left one backseat occupant crying in their own lap. This isn't necessarily something to be proud of, but it gives you a glimpse into why it is that I find this ad from Pepsi so damn disappointing. The premise is beautiful. Take NASCAR legend Jeff Gordon, give him a disguise and set him loose upon some unsuspecting used car dealer. Hilarity ensues.
Except that this Pepsi Max commercial is so obviously staged, it can't help but feel like some ham-fisted marketing fail. From the strategically placed aftermarket cupholder mounted mid-dash for the hidden camera to the fact that the supposed dealer Camaro is displayed as a 2009 model (Hint: Chevrolet didn't make any), this clip is about as organic as a Twinkie. Still, we would never turn down a chance to watch Gordon thrash on a rental-spec coupe - only problem is, he probably didn't even do the driving himself. Check it out below.

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!"