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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.

2018 Jeep Grand Cherokee Trackhawk is more expensive than the Dodge Demon

Jeep has finally released pricing for its crazy, all-wheel-drive, Hellcat-powered Grand Cherokee, and it's seriously expensive. It starts at $86,995. That's a full $2,000 more than the limited-production, 840-horsepower Dodge Challenger SRT Demon. For 140 fewer horses, and a quarter-mile time that's 2seconds slower (11.6 seconds vs. 9.6), you'll spend more money. Then again, the Grand Cherokee can do things the Demon and the Hellcats can't. It's got more space than any of them, meaning you can carry quite a bit more. It's capable of towing up to 7,200 pounds of stuff. It also has all-wheel drive, which means you have a little extra traction in bad weather, and you have the opportunity to do spectacular four-wheel burnouts. And of course, the Trackhawk is still fast and capable by any measure. It's only a tenth of a second slower to 60 mph than the Challenger Hellcat Widebody. It also comes with massive Brembo brakes, with the largest front rotors fitted to a Jeep, to haul it down from 60 mph in a claimed 114 feet. Each corner features 295-mm tires that Jeep claims let the Trackhawk generate 0.88g circling a skid pad. If the Trackhawk sounds like just the absurd performance machine you've been waiting for, you'll be able to put your order in soon. Dealers will accept orders starting Aug. 10, and the vehicles will start arriving at dealer lots toward the end of the year. Related Video: Featured Gallery 2018 Jeep Grand Cherokee Trackhawk View 45 Photos Image Credit: Jeep Jeep SUV Performance

Chrysler Recalls 350K Vehicles To Fix Ignition Switches

Chrysler is recalling nearly 350,000 cars and SUVs to fix ignition switches that could unexpectedly shut off the engines. The recall covers 2008 Jeep Commander and Grand Cherokee SUVs, Chrysler 300 and Dodge Charger sedans, and Dodge Magnum wagons. All were built before May 12, 2008. Chrysler says the ignitions may not fully return to the "on" position after being started. The switches could move to "accessory" or "off." That could shut off the engine and knock out power-assisted steering and other features. Chrysler knows of one crash and no injuries from the problem. It's telling people to use the key alone in the ignition and confirm that switches have returned to "on" after starting their cars. Chrysler is investigating the cause. Customers will be notified when repairs are ready. Related Gallery The Trucks And SUVs Consumers Are Liking Most View 11 Photos