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A Mazda Miata with a Hellcat V8 exists, and it can be yours

Mazda Miatas with V8 swaps aren't unusual. Kits are available to drop in LS V8s from GM, and some even let you drop in an old Ford 5.0-liter V8. But a Miata with a Hellcat V8 is something special, and this one can be yours. As Automobile spotted, it will go across the block at the Barrett-Jackson Las Vegas auction. This particular 1999 Miata has a build history you can check out for yourself, too. It was all chronicled on YouTube channel KARR. Obviously the Hellcat engine does fit between the wheels, but the hood had to be cut open for the intake manifold and supercharger to fit. The front bumper and lights have been changed to the 2001+ NB Miata design. According to the listing, it has suspension components from V8 Roadsters, a company that specializes in Miatas with twice the normal number of cylinders. In the middle of the car is a manual transmission, which connects to a Ford 8.8-inch differential that's been welded up. With that much power and an essentially locked rear diff, it should make for an excellent drift car. Fortunately it also has 10-inch wide wheels for more grip, and upgraded Wilwood brakes to stop it. It will go for auction at Barrett-Jackson's Las Vegas event, which runs Oct. 3-5. There is no estimated price for the car, which is understandable since nothing like it has crossed the block before. It will go to a new owner, whatever the price, as it is being listed as "no reserve." So if you want to win burnout contests or get loads of stares at next year's Woodward Dream Cruise, you could do a lot worse than picking up this tiny monster. Aftermarket Dodge Mazda Convertible Performance Hellcat

Old vs. New: 2014 SRT Viper takes on upgraded 16-year-old Dodge Viper

It's easy to play the "Would you rather have a New X or an Old Y with a bunch of upgrades?" game more often than we care to admit, but the crew at Car and Driver have taken bench racing to the next level with their latest video. In it, the magazine pits a brand-new 2014 SRT Viper against a highly modified 1997 Dodge Viper GTS. There are 16 years between the time this particular GTS rolled off the production line and when the new car bowed, but that doesn't mean the old snake's owners have been sitting on their hands.
Thanks to a spate of modifications, the GTS offers up a better power to weight ratio than the new machine, but is that enough to overcome the technological leap forward represented by the 2014 Viper? We won't spoil it for you. You'll just have to check out the full clip below for yourself.

Hennessey Dodge Demon sets hellishly fast quarter-mile time

The Dodge Demon doesn't strike us as a muscle car much in need of a performance makeover. After all, this 840-horsepower MoPar machine's voracious quest for straight-line speed means it trims weight by jettisoning everything from a front passenger seat and rear seat, to its stereo and all carpeting in the trunk. The folks at Hennessey apparently think that's not nearly extreme enough. So, the Texas-based tuning outfit has turned the Demon into a 1,035-horsepower mega beast that runs a quarter-mile in 9.14 seconds at 152 mph. That's fast, really fast. In fact, the HPE1000 is now the world's fastest Dodge Demon, having set its record-setting pace at Lonestar Motorsports Park on May 8. "The 2018 Demon is a street-legal rocket from Dodge, but we wanted to take the car's impressive track times to an industry leading level." said president and company founder, John Hennessey. For comparison, the stock Dodge Demon is credited with running the quarter-mile in 9.65 seconds at 140 mph. The main HPE1000 modification involves replacing the stock 2.7-liter supercharger with one that's a staggering 4.5-liters in capacity. Also included in the Hennessey toy-chest are stainless steel long tube headers, a high-flow air induction system, upgraded throttle body, upgraded fuel pump and fuel injectors, along with custom engine management calibration. When all is said and done, the HPE1000 Dodge Demon delivers a total of 1,035 horsepower at 6,500 rpm and 948 pound-feet of torque at 4,200 rpm. While the standard Demon accelerates from 0-60 mph in only 2.3 seconds, the Hennessey variant trims this down to only 1.9 seconds. That's quick enough to make a Bugatti Chiron blush. Hennessey hasn't stated what all this will cost, though the company did say production of these devilishly fast Demons will be limited to only 50 examples. Customers also receive a 1-year/12,000-mile warranty, which seems a nice touch for a car that's downright scary with its performance specs. Related Video: Featured Gallery Dodge Demon Hennessey HPE1000 View 30 Photos Aftermarket Dodge Coupe Performance supercharger Hennessey dodge demon quarter mile demon