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2015 Dodge Challenger SRT Hellcat with '600-plus horsepower' officially unveiled [w/video]

Dodge has officially unveiled the most powerful vehicle to ever wear the Challenger name - the SRT Hellcat - complete with over 600 horsepower courtesy of a supercharged, 6.2-liter Hemi V8. It will be offered alongside the 485-hp Challenger SRT.
The new, force-induced V8 isn't just the most powerful ever fitted to the Challenger, it's the most powerful eight-cylinder Chrysler Group has ever built. Power figures aren't finalized, so expect to see "over 600 hp" bandied about quite a lot. That fury will be channeled through either a six-speed manual or eight-speed automatic. Yes, over 600 ponies through an eight-speed auto. So far, the only vehicle we know of that delivers more output through that many gears is the as-yet untested Chevrolet Corvette Z06. Sadly, we don't have performance metrics just yet, although if this thing can't crack four seconds to 60 miles per hour, we'll be pretty surprised.
As is the theme nowadays, the 2015 Challenger SRT features a number of driving modes, governing power output, shift speeds for the 8AT, steering effort, traction control settings and suspension settings. There are three pre-programmed options - Default, Sport and Track - and a Custom mode that allows drivers to mix and match to their heart's content.

Dodge Challenger spied exercising supercharged Hellcat Hemi V8

One of the prime complaints against the Dodge Challenger is that, even in SRT8 guise, its 470 horsepower is responsible for hauling over 4,200 pounds of vehicle. For comparison, the 420 hp in the Ford Mustang GT only has to deal with 3,618 lbs. Things only get worse from there, as the higher-performance variants of both the Mustang and the Chevrolet Camaro are far more powerful than an SRT8 without adding on much heft.
So what is Chrysler to do? The correct answer is add a whole lot more grunt to its hefty two-door and even the odds. That's where the all-new Hellcat engine comes into play. We reported on this engine in May, and suggested that the Hellcat, a supercharged powerplant based on a 6.4-liter V8, would easily generate 500 to 570 hp and could likely arrive boasting more than 600 ponies.
Chrysler's ace in its sleeve has now been spied testing, with a number of Hellcat-equipped Challengers running the potent new engine both in more urbanized areas and under the sun of Death Valley. The hoods on these testers have been raised to accommodate the engine, and that camouflage over the fascias of these prototypes is there to hide a larger air intake. We also note what appears to be a new split grille under wraps. As for power output, our spies are now suggesting a Viper-equalling 640 hp from the Hellcat-equipped cars.

SRT reveals Satin Vapor Edition 300, Charger and Challenger SRT models

With the exception of some notable truck and van introductions, Chrysler brands have tended to use the Chicago Auto Show to bring out new special editions, pimp their aftermarket parts support or indulge in the occasional flight of fancy. That plan is holding true for 2014, as well. Cases in point are these new Satin Vapor Editions of the 2014-model-year Dodge Challenger, Dodge Charger and Chrysler 300 - all from SRT.
The Satin Vapor name may sound like a failed 1970s glam-rock band, or a pseudo-gynecological diagnosis from the Old West, but is, in fact, pretty much a tape-and-trim package for this trio of hi-po Mopars. 300, Challenger and Charger alike come shod with 20-inch aluminum wheels finished in Black Satin Vapor Chrome, and are accented with Satin Black bits aplenty. The 300 gets blacked-out mirrors, spoiler and roof; the Challenger applies it to mirrors and its fuel door; while the Charger has the stuff covering its roof, hood and Super Bee tail graphic.
Interiors of the cars have been mildly updated as well, with all three getting some combination of Nappa leather, ultra-suede and carbon-fiberish finishes.