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500+ hp Stellantis 'Hurricane' I6 previews a world without Hemis

After years of rumored development, Stellantis has revealed its new six-cylinder engine family. The 3.0-liter, twin-turbocharged "Hurricane" I6 will offer V8 power, forced induction torque and six-cylinder efficiency in a package designed to fit into any of the company's North American rear-wheel-drive platforms.  What is "V8 power," exactly? Well, in standard output guise, the new I6 cranks out more than 400 horsepower (the specific figure will vary by application) and 450 pound-feet of torque, while the high-output variant is good for more than 500 horses and 475 lb-ft. The final figures will be dependent on the application. We'll save you a little legwork: In current Ram, Jeep and Dodge products, the 5.7-liter Hemi tops out at about 395 hp and 410 lb-ft, give or take, and the 6.4-liter around 485 hp and 475 lb-ft.    This is a clean-sheet design that is only related to the company's turbocharged four-cylinder by some common measurements. The I6 is exclusively direct-injection (no hybrid/port-injection here) and the two I6 variants share 96 common parts, including the block and oil pan design. The differences are found in their internals, intake plumbing, valvetrain components and the turbochargers themselves. Stellantis is not yet ready to share specs or supplier info for the turbos but says announcements will come from its partners soon.  The standard-output I6 has a compression ratio of 10.4:1 and revs to 5,800 rpm. It will run on regular fuel, albeit with reduced performance; 91 octane is recommended for maximum output. The high-output variant has a compression ratio of 9.4:1 and will rev to 6,100 rpm. That one will require premium. The new I6's advantages go beyond basic power output. Every Hemi family engine currently in production is based on an iron block design, so they're heavy. The aluminum-block I6 shaves weight off the total engine package, even if some of that gets added back thanks to the turbos and their associated plumbing. The standard-output I6 weighs 430 pounds, Stellantis engineers told us; the high-output adds just another 11. Fully dressed 5.7-liter V8s are in the 550-560-pound ballpark, and 6.4-liters close in on 600 pounds.  You may be wondering, "Why a clean-sheet gasoline engine now, when the industry is moving toward battery-electrics?" A valid inquiry, and one Stellantis was prepared to address. While the company will be pivoting to electrification over the next decade, it won't be instantaneous.

Junkyard Gem: 1977 Dodge Colt Mileage Maker Coupe

While Ford and GM each had the resources to develop their own Michigan-designed subcompacts for the dawn of the 1970s— the Pinto and Vega, respectively— Chrysler couldn't afford the huge price tag for such a project. Instead, Chrysler's European operations were tapped for a couple of models that sold well enough on the other side of the Atlantic, giving us the Plymouth Cricket (known as the Hillman Avenger in the UK) and the Simca 1204 (aka the Simca 1100 in France). American car shoppers gave those two models the cold shoulder, but then Chrysler found genuine sales success by making a deal with Mitsubishi to sell the Colt Galant with left-hand drive. This became the Dodge Colt, with sales beginning in the 1971 model year. Though the 1971-1978 rear-wheel-drive Colts were once as commonplace as Corollas or B210s on American roads, they have all but disappeared today. That makes today's Junkyard Find, discovered in a Denver-area yard last week, particularly interesting. This car shows signs of having been in the hands of a speed-crazed enthusiast owner, including an aftermarket steering wheel and one-piece racing seats with slots for five-point harnesses. The primer-gray paint is another clue. The rear-wheel-drive Colts were reasonably quick for their time, and they could be made genuinely quick with basic engine upgrades. This Mitsubishi Saturn four-banger has a tube header, hot-rod ignition system, and a two-barrel (Mikuni-made) Solex carburetor. We can assume there's probably some kind of cam upgrade under the valve cover, too. The shifter is gone, but the original transmission in this car was either the base four-speed or optional five-speed manual. A three-speed automatic was available for $270 (about $1,275 today). Later on, front-wheel-drive Colts (and Mitsubishi Mirages) could be bought with the Twin-Stick overdrive rig, which gave drivers eight forward speeds and the opportunity to make Twin-Stick beer taps. The 1977-1978 Dodge Colt two- and four-door sedans were based on the Mitsubishi Lancer and were a bit smaller than the 1971-1977 cars, while the wagon version moved to the Galant Sigma platform. The build tag shows that this car started life as the cheapest 1977 Colt model, the "Mileage Maker" two-door sedan (Dodge dealers called it a coupe, so that's what I'm calling it in the title).

Dodge Viper production to end after 2017

We can't say we're surprised, but we're still saddened to report that the Dodge Viper will not live on past the 2017 model year. It's had a solid 25-year run, though, and that's worth celebrating. Fiat Chrysler Automobiles does just that for the Viper's final model year, with five special editions (some of which seem less special than others, admittedly): The 1:28 Edition ACR, GTS-R Commemorative Edition ACR, VoooDoo II Edition ACR, Snakeskin Edition GTC, and Dodge Dealer Edition ACR. Instead of running through what makes each of these 2017 Vipers special, we'll direct your attention to the press release below and the images above. All but the Dodge Dealer Edition commemorate memorable Viper models of the past 25 years, and the GTS-R is probably the pick of the litter with its classic blue-on-white paint scheme. Unless you prefer to err on the side of gaudy, in which case Dodge has you (and your car) covered with Snakeskin Green. If none of these special-edition Viper models strikes your fancy but you'd still like to park a 2017 Viper in your garage, fret not. Dodge is still offering its "1 of 1" customization program for the Viper's final year of production. Finally, instead of dwelling on the past, even when that past is as exciting as the Viper's, let's choose to look to the future with the only logical question left unanswered: What's next? Related Video: This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings.