1963 Ford Falcon on 2040-cars

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Submit your questions for Autoblog Podcast #310 LIVE!

We record Autoblog Podcast #310 tonight, and you can drop us your questions and comments regarding the rest of the week's news via our Q&A module below. Subscribe to the Autoblog Podcast in iTunes if you haven't already done so, and if you want to take it all in live, tune in to our UStream (audio only) channel at 10:00 PM Eastern tonight.
Discussion Topics for Autoblog Podcast Episode #310
Buick GN and GNX will return

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!"

NHTSA closes investigations into Ford Taurus, Hyundai Santa Fe

Ford and Hyundai are out from under the scrutinizing eyes of the National Highway Traffic Safety Administration after the government agency said it was closing investigations against both automakers over vehicle safety concerns.
Ford was being investigated for reported damaged speed control cables on Ford Taurus (shown above) and Mercury Sable models, both built between 2000 and 2003. Vehicles with the company's Duratec engines allegedly failed to allow owners to brake as expected. Owners lodged 100 complaints and were involved in five accidents, according to NHTSA records. The American automaker responded to the reports, and on June 21 of this year, said that it would inspect and repair all affected vehicles, regardless of the mileage.
Hyundai was under investigation for a reported loose fastener on the steering shaft of its 2011 Santa Fe (shown in the gallery below). After NHTSA launched its inquiry, the Korean automaker responded with its own investigation that yielded four affected vehicles. Following the inspection of 680 vehicles at its assembly plant, Hyundai said the issue was due to employee error and that no further defects have been found.