2012 Dodge Charger Police Package 5.7 Hemi V8 on 2040-cars

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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.

2015 Dodge Challenger R/T Scat Pack

We all knew That Kid. As a freshman, he was a big kid, overweight but surprisingly strong. Still, he was often picked on for his size. Then, he chatted with the football coach, who convinced him that his true calling was on the team's offensive line. After a season on the freshman squad and a summer of two-a-days, this mild-mannered, husky high schooler returned for his sophomore year as a big, imposing, solid piece of muscle. Needless to say, the same bullies that picked on him were praying he'd forgotten about them as a 10th grader.
That's the V8-powered 2015 Dodge Challenger. It arrived on the scene with a max of 425 horsepower and a bit of a weight problem. It completed its proverbial freshman year with a nice 2011 refresh, where the SRT8 was bumped up to 470 hp, but it still had some work to do.
Enter 2015, and fresh off three months of constant burpees and wind sprints, the newest Challenger is as big and powerful as it's ever been, but it's now got poise and potential, and my goodness, it's fun in a way that Dodge's muscle car has never been.

2015 Dodge Viper getting small increase in power

The Viper is used to being the most powerful car in the Dodge and SRT stables, but the arrival of the 2015 Dodge Challenger SRT Hellcat means that's no longer the case. The serpentine supercar is, however, reportedly getting a small boost in output for 2015, amounting to all of five horsepower.
The increase was uncovered by Road & Track courtesy of the SAE J1349 certification process to which Detroit's Big Three automakers submit themselves and which reports the Viper's output at 645 hp instead of the 640 it was rated at until now. There are a hundred factors that could have contributed to the relatively mild boost in output (best guess? nothing at all changed...), but we doubt anyone's going to complain about some extra horses under the hood.
The five-horsepower boost brings the Viper that much closer to the 650-hp Chevy Corvette Z06, not to mention the 707-hp Hellcat, but the Viper's impressive power-to-weight ratio ought to mean it'll have little problem keeping up in a straight line - which is just one of the reasons why Chrysler won't shoe-horn the Hellcat into the Viper: as R&T points out, the supercharged engine is too heavy and the blower makes it too tall to fit in the Viper's engine bay.