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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!"

GM trucks get hybrid versions, but you'll probably never see one

A few years ago, General Motors sold hybrid versions of its Chevy Silverado and GMC Sierra pickups. They weren't very good, using GM's old two-mode hybrid system that resulted in only negligible fuel economy gains. But GM's trying again, launching eAssist models of the 2016 Silverado and Sierra that are said to offer 2-mpg improvements in city, highway, and combined fuel economy ratings. Problem is, you probably won't be able to get one. Only 700 eAssist trucks will be made for the 2016 model year – 500 Silverados and 200 Sierras. When you consider that GM moved 824,683 examples of its light-duty pickups in 2015, this small run represents 0.08-percent of all Silverado/Sierra production, and GM says it "will monitor the market closely ... and adjust as appropriate moving forward." But that's not the only limitation. The eAssist trucks will only be sold through California dealers. For the Silverado, eAssist can only be optioned on the 1500 Crew Cab 1LT 2WD model, and for the Sierra, the fuel-saving technology is solely available on the 1500 SLT Crew Cab 2WD model with the SLT Premium Plus package. Granted, in terms of the Sierra, that means you get niceties like LED headlights and taillights, Apple CarPlay and Android Auto, Bose premium audio, heated seats and steering wheel, lane keep assist, and more. In the trucks, eAssist combines a small electric motor and 0.45-kWh battery pack with the pickups' 5.3-liter V8. GM estimates total output of 355 horsepower and 383 pound-feet of torque – no more horsepower than the non-eAssist trucks, but three more pound-feet of torque. GM says the eAssist trucks can tow up to 9,400 pounds, and the battery only adds 100 pounds to the trucks' weight. The electric motor provides 13 hp and 44 lb-ft of torque for a boost of acceleration off the line, or during passing. It also allows the engine to run in four-cylinder mode for longer periods of time. eAssist uses regenerative braking to help power onboard electrical systems, and adds start/stop to the powertrain. Finally, the so-equipped trucks have a six-percent improvement in aerodynamics, thanks to a soft tonneau cover and active grille shutters in the front fascia. Great news is, the eAssist option is relatively inexpensive, only costing $500. But good luck getting your hands on one.

Porsche 911 tops a list of must-have classics, but No. 2 is more of a surprise

No surprise here: In Europe, the Porsche 911 is the most sought-after classic car. Surprise here: Slip-streaming the 911 in the most sought-after chart compiled by the Car & Classic marketplace is the Ford Mustang. Using the Google search engine as a means to pick the winners, as well as the average prices achieved on the “Car and Classic” website, the venerable 911 was tagged 1.45 million times per month according to data stretching back 15 years. The number of 911Â’s sold though the C&C marketplace was 21,141, at an average price of 58,409 pounds, or $74,300. FordÂ’s pony car, still a popular choice for buyers in Europe, placed second on the list with 1.2 million monthly searches. The average sales price over 15 years was 31,107 pounds ($39,570), and the number of older Mustangs sold reached a total of 8,332. Models that also finished among the charted top 10 include the Land Rover Range Rover, the Corvette, the ultra-classic British favorite Jaguar E-Type and the BMW 3 Series. “Whilst a 1973 Porsche 911 Carrera 2.7 RS could set you back the best part of GBP500,000 ($636,000), there are many more affordable models, which bring the average sale price of a 911 on Car & Classic to GBP58,000 ($73,800) – the third highest average selling price of any make and model on the site,” explained Dale Vinten of Car & Classic. According to the site, the Jaguar fetched the highest average selling price: a whopping 89,000 pounds, or $113,000. But thatÂ’s peanuts compared to a Series 1 Roadster in excellent condition, said Vinten. For that, “you can expect to spend up to GBP250,000 ($318,000), A Series 2 or 3 will cost less, as they are not as desirable, but in decent condition you can expect to pay around GBP40,000-GBP50,000. Even a barn find 1969 E-Type Series 2 Roadster can set you back to the tune of GBP33,000 ($42,000)." Launched in 2005, Car & Classic is among EuropeÂ’s most popular classic car clearinghouses. It also runs a stand-alone auction site.