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2015 Dodge Challenger SRT Hellcat has 707 glorious horsepower [w/video]

Hold onto your butts. "600-plus horsepower" is what we were told to expect from the 2015 Dodge Challenger SRT with its 6.2-liter supercharged Hellcat V8 engine. But as we've just learned, those were incredibly conservative numbers. Dodge has officially announced that the range-topping Challenger will hit the asphalt with 707 - seven hundred and seven - horsepower, making it the "most powerful muscle car ever."
Of course, 707 hp is only part of the story, as the Hellcat has also been confirmed to produce 650 pound-feet of torque. All that power will run exclusively to the rear wheels through an eight-speed automatic transmission that differs from other Challengers. The new gearbox, 8HP90 (rather than the 8HP70) is "upgraded to handle the extra power and torque," says Dan Reid, SRT's manager of product design and motorsports.
We certainly hope you're prepared to spend a ton of money replacing tires.

Chrysler almost smothered the Hellcat before it lived

Chrysler's 6.2-liter supercharged Hellcat V8 was an absolute sensation from the very moment it was announced, and honestly, how could it not have been? Packing 707 horsepower and 650 pound-feet of torque, its numbers immediately put every other production muscle car (and many supercars) to shame. Plus, we soon learned that would be wrapped in a package retailing for around $60,000 - a pittance compared to other vehicles offering similar grunt. However, the Hellcat almost never got the chance to rumble under the hood of the Challenger and Charger.
The Hellcat was initially proposed back in 2011, back when Fiat was deciding its future strategy for Chrysler Group, according to Automotive News. At the time, the company was just emerging from its bankruptcy doldrums, and an ultra-high-performance V8 wasn't exactly a must-have item. The program didn't move forward. However, SRT engineers kept fighting, according to AN, and four months later, they received the green light to pull the project off the shelf and continue developing the Hellcat. The muscle car world is certainly better for that decision.
The work of those engineers focused on taking Chrysler's standard 6.2-liter V8 and making it reliably handle all of the extra power from the supercharger. "It came down to micron levels of changes in the crank to be able to withstand the pressures of the engine," said Chris Cowland, director of advanced and SRT powertrain, to Automotive News. The changes amounted to switching out about 91 percent of the parts to make the Hellcat, including some quite minuscule alterations. For example, the washer holding the supercharger pulley is embedded with industrial diamonds to keep it from slipping.

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.