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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.

Dodge Viper to out-Hell the Hellcat with supercharged V10?

The Viper wouldn't be the Viper if it wasn't the most powerful model under the Chrysler umbrella. But with the arrival of the Hellcat engine in the Dodge Charger and Challenger, the Viper has fallen behind in the bragging rights department: where the new supercharged V8 produces 707 horsepower and 650 pound-feet of torque, the naturally aspirated V10 offers "only" 640 hp and 600 lb-ft - gargantuan output figures by almost any other standard, but crucially behind on the SRT power scale. Conner Avenue is going to have to do something about that.
Although the Hellcat's engine reportedly won't fit under the Viper's hood, SRT is now rumored to have another trick up its sleeve: supercharge the existing V10. According to the Pentastar performance enthusiasts at allpar.com, Chrysler has already taken delivery of the first such prototype engines so that it can begin the process of fitting it into an upgraded Viper.
The spooled ten-pot is tipped to produce around 800 hp and 650 lb-ft of torque. More than that and the Viper's drivetrain, chassis and bodywork would have to be substantially reworked. Though beefier transmissions are available, fitting them would reportedly set off a domino-game of changes required to handle the added torque. Which may be something Chrysler would be prepared to do for the next-generation model, but in the meantime, 800 hp could prove enough to put the Viper back atop the Mopar performance ladder where it belongs, and give it an edge against the new Corvette Z06 to rekindle sales.

2013 Dodge Dart gets brace of new special edition models

After almost a year on the market it, it is becoming more clear to Dodge how customers like to option out their Darts, so the automaker has combined popular features into three special edition packages and sweetened the prices. Start with a standard 2013 Dart and add either the SXT or Limited "Special Editions" or Rallye Appearance Group, and you'll save yourself a lot of box checking.
The $595 Dart SXT Special Edition takes the trim just above the base model and adds a new grille, dark-tinted headlights and projector fog lights, LED racetrack taillights, cruise control and audio controls on the leather-wrapped steering wheel. The Limited Special Edition starts with the top-end model and adds a power sunroof, heated front seats and steering wheel, dual-zone climate control and Nappa leather seats among other features, for $1,810.
The Rallye Appearance Group (pictured) is a package for the SXT, and it blacks out the front fascia, throws on 17-inch wheels and some badging for $395. The new special editions are reaching dealers now and could help the Dart's sales to further improve after a slow start. You can find out more about them in the press release below.