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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!"

Gary Cooper's 1935 Duesenberg SSJ fetches record price at Pebble Beach

The 1935 Duesenberg SSJ formerly owned by Gary Cooper sold for a jaw-dropping $22 million over the weekend at the Gooding & Co. Pebble Beach auction, setting a record for the most valuable pre-war car ever sold at auction. It also appears to have become the most expensive American collector car ever sold at auction, eclipsing the very first Shelby Cobra ever made, which sold for $13.75 million in 2016. The Duesenberg was also the lone American-made entrant in the list of top 10 sellers, which was crowded with the names Ferrari and Porsche. You have to go all the way down the list to No. 21 to find the next American car: a 1930 Packard 734 Speedster Phaeton, which sold for a mere $1.127 million. All told, Gooding & Co. said it realized more than $116.5 million in auction sales over the weekend, with a whopping 25 cars sold for north of $1 million, an 84 percent sales rate and an average transaction price of $947,174. Clearly this is how the other half 1 percent lives. Gooding & Co. said there were five world-record sales at the auction. Joining the Duesenberg were a 1955 Ferrari 500 Mondial Series II, which sold for $5.005 million; a 1958 Ferrari 250 GT Tour de France Berlinetta, $6.6 million; a 1967 Ferrari 330 GTC Speciale, $3.41 million; and a one-of-two 1966 Ferrari Dino Berlinetta GT, $3.08 million. Oh, and that 1969 Ford Bronco test vehicle we told you about? The one that was rebadged by Holman & Moody as a Bronco Hunter? It sold for $121,000, which was well below the expected range of $180,000 to $220,000. Perhaps it was the presence of all those gorgeous Porsche Spyders and Ferraris that meant collectors weren't interested in boxy, utilitarian off-roaders. View 24 Photos Gooding and Co. had expected the convertible Duesenberg coupe to go for more than $10 million. It was one of only two of its kind built by Duesenberg — the other having gone to Clark Gable — with a specially shortened, 125-inch wheelbase and a supercharged straight-eight with double overhead cams, able to produce around 400 horsepower and a top speed of 140 miles per hour. It features a lightweight open-roadster bobtail body produced by LaGrande out of Connersville, Ind. The car was also owned at one point by race driver Briggs Cunningham.

Ken Block's 1965 Ford Mustang Hoonicorn RTR and CR Supercars Villain are retro done right

Gymkhana king Ken Block has had a pretty simple car history in his trademark videos, starting out with Subaru Impreza rally cars before moving into Ford Focus racers for the past four installments. His next video, though, Gymkhana Seven, kind of goes back in time.
Rather than the cutting-edge rally racers of past videos, Block will pilot a heavily modified 1965 Ford Mustang, called the Hoonicorn. How heavily modified is it? Well, Block's Hooligan Racing Division, ASD Motorsports and Vaughn Gittin Jr.'s RTR, spent two years working on it, ditching the standard engine and rear-wheel-drive layout and replacing it with a 410-cubic-inch Roush Yates V8. Yes, that's a NASCAR engine, and it produces 845 horsepower.
A NASCAR-powered Mustang would be news in itself, but it's the other powertrain changes made by Block and Co. that really makes headlines. Power is channeled through a one-off Sadev transmission and all-wheel-drive system, meaning that Block has basically married a NASCAR stock car with a WRC racer. ASD also developed the customized suspension, tubular chassis and roll cage. The wide Mustang body is the work of RTR and Block's own Hoonigan Racing Division, while the 18-inch fifteen52 wheels are shod in Pirelli Trofeo R tires that use a specialized compound exclusive to Block.