2014 Dodge Durango Limited on 2040-cars

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Indications of 825 hp and emissions issues for Hellcat called 'speculation' by Chrysler

The 2015 Dodge Challenger SRT Hellcat is probably one of the hottest cars of the moment mostly because of its insane, 707-horsepower supercharged V8. However, there are conflicting reports coming out that the powerplant might be having problems with its emissions compliance and may be capable of even more power.
Jalopnik says that an unnamed source within Fiat Chrysler Automobiles told it that the Hellcat was having problems meeting emissions standards at its 707-horsepower tune. The person claimed that the automaker has been testing the V8 with different types of sensors, possibly to make it a bit cleaner in the future. Autoblog spoke to SRT spokesperson Dan Reid, and he said about the claimed poor emissions, "It's totally speculation."
The source also claimed that the Hellcat had been dynoed at a monumental 825 horsepower, internally. Based on the other rumor, though, it's hard to imagine the engine being emissions compliant like that. Autoblog also asked Reid about this speculation about more power and was told, "They are totally speculating about that."

Mopar '13 Dart is a bruiser of a compact

For the fourth year in a row, Mopar is offering a limited-production car decked with a plenty of add-ons and a unique look. This year's black-and-blue car is the Mopar '13 Dart, which was unveiled at the Chicago Auto Show with the now-signature paint scheme. Like previous Mopar models, only 500 of the '13 Darts will be built. Past models include the Mopar '10 Challenger, Mopar '11 Charger and the Mopar '12 300.
The all-black Dart gets a brightly contrasting, offset blue stripe running the full length of the car, and other styling mods like the aero-tuned body kit, gloss black grille, wheels and mirror caps. Curiously, Mopar chose to stick with the Dart's standard headlights rather than the darker, smoked lights. The interior gets a similar black-and-blue treatment, but this unique cabin features a blue leather driver's seat to go along with the black leather seating for the rest of the passengers.
More than just a styling package, the Mopar '13 Dart also gets some performance and handling goodies to complement the Dart's turbocharged 1.4-liter engine, such as upgraded brakes with slotted rotors, a lowered suspension, retuned electric power steering and a "sport-tuned" exhaust system.

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!"