14 Dodge Challenger Srt8 392 6.4 Liter Hemi 475 Hp Nav Sunroof Black Leather on 2040-cars

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40+ cars that barely avoid the gas guzzler tax

The Gas Guzzler schedule, with mpg ratings and charges that haven't changed since 1991, lays out which fuel-swillers owe what to Uncle Sam.
I started thinking about the "Gas Guzzler Tax" - considerably less well known as The Energy Tax Act of 1978 - when I was driving Dodge's new Challenger SRT Hellcat last week. Unsurprisingly for a car that can burn 1.5 gallons of gas per minute at max tilt, theoretically able to empty a full tank of premium in about 13 minutes, the Hellcat will be subject to the Gas Guzzler Tax schedule when it goes on sale.

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.

Dodge Durango Shaker concept: A 392 V8 in front of six Viper seats

When done right, a parts-bin special can be a beautiful thing. This Dodge Durango Shaker concept for the 2016 SEMA show is one such vehicle, and it's easily our favorite Mopar debuting in Vegas. The key, of course, is pulling from the right bins. Take a tour and you'll see Charger, Challenger, and Viper pieces grafted onto this slick crossover. The featured special part is the big, 6.4-liter 392 Hemi V8 that's been dropped under the hood; it's sourced from the SRT Challenger and Charger where it makes 485 horsepower and 475 pound-feet of torque. With that in place, the fabricators cut a big hole in that hood for the Challenger's awesome optional shaker scoop. It wasn't an easy installation; it required a custom spacer for the intake to make sure everything lined up with the hole properly. View 17 Photos Apparently there were some Viper seats lying around, so six of them were stuck into this Durango. Makes sense. It does lose a bit of people-carrying capability as a result, since only two seats fit in each row, and the seats don't fold for extra cargo room. A Dodge spokesperson attested to the fact that all three rows are usable, if not totally comfortable. But then stock third-row seats aren't always that comfortable anyway. Seriously, though, Viper seats. We don't care how comfortable or usable the result is. Although you might not give it a second thought, even the fuel filler needed some special attention. This piece was also lifted from a Dodge Challenger, and it was taken along with the surrounding sheet metal. Because of the different orientation of the filler cover on the Challenger, the builders decided the easiest way to get it to fit was to chop the fuel filler section out and weld it onto the Durango. The designers also put a little blue Stig on the cover. And those are just the cool parts that were hard to install. This Durango features plenty of other slick details, like the custom bumpers, fender flares, and side skirts. Everything is painted B5 Blue with matte black and carbon accents all around. Up front, the bumper hides a pair of fog lights stolen from a Challenger Hellcat – and yes, they're the ones with intakes in the middle. The grille is also a custom piece, losing the standard crosshair design for better airflow. The fender flares cover up some seriously wide, 305-section tires at all four corners, which are hauled down by Hellcat brakes. The rear bumper bumper contains a stylish center-exit exhaust with dual tips.