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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.

3-row Jeep Wrangler, V8 Kaiser ambulance, and more from Mopar for SEMA

SEMA is back this year, and as is tradition, the American Stellantis brands Jeep, Ram, Dodge and Mopar are bringing some truly amazing concepts to the show. The brands have come up with seven vehicles, four from Jeep, two from Ram and one from Dodge. Some of them show off the current Mopar catalog and possible future parts, while others are just really cool customs. Let's check them out. Jeep Wrangler Overlook Jeep Wrangler Overlook concept View 8 Photos We're starting off with perhaps the most interesting of the concepts on display, the Jeep Wrangler Overlook. And you'll notice right off the bat that it's longer than your average Wrangler Unlimited. It's actually a full foot longer. And it doesn't just add cargo space, it adds passenger space. There's a third row of seats in the Overlook. Those seats also necessitated the safari-style custom rear roof. It's 5 inches taller than a regular Wrangler roof to provide headroom for rear occupants. It also made room for the extra windows. Front passengers also get a fancy single-piece roof section with a pop-up glass section, and the interior features black leather and bronze accents. Other body changes include a custom hood, a narrower front bumper for improved approach angle and a widened rear bumper to protect the longer tail. It also gets custom front bumper lights, Jeep Performance Parts (JPP) A-pillar lights and tubular side steps. The Overlook also rides on the Jeep Performance Parts (JPP) 2-inch lift kit with Fox shocks and 20-inch wheels with 37-inch tires. We wouldn't have thought a three-row Wrangler would be something that would reach production, and it's still unlikely. But, this looks really good. And when Land Rover already offers a third row in the Defender, and is working on a stretched version, we're starting to wonder if Jeep should think about an even more stretched Wrangler. Kaiser Jeep M725 Kaiser Jeep M725 concept View 11 Photos Next up is this year's resto-mod from the Stellantis crew. They found an old Kaiser Jeep M725 military ambulance and did a few things to make it a more modern, go-anywhere super tailgater. Under the hood is a 485-horsepower 6.4-liter V8 paired to an old-school TorqueFlight 727 automatic transmission, shifted by a B&M shifter housed in a repurposed ammunition box. It's still four-wheel drive and has the old axles, but they're attached via a coil-spring suspension instead of the original leaf packs.

How to update and secure a vulnerable Chrysler Uconnect system

If you own one of the 1.4 million vehicles affected by the recent Chrysler software recall, you may want to watch this video. In it, we explain how to get the latest infotainment software loaded onto the 8.4-inch Uconnect system. The recall was a response to the findings of researchers who were able to hack into and remotely control a 2014 Jeep Cherokee through its cellular connection. Although Fiat Chrysler has worked with Sprint to plug most of the holes on the carrier side, there are still some vulnerabilities that only this latest software version can patch. Owners have three options to get the update: download it now, wait for a USB stick in the mail, or take the vehicle to an FCA dealer. Chrysler will be sending USB sticks loaded with the software update to customers. Anyone with an internet connection and a USB stick of their own with at least 4 GB capacity can speed things up by downloading the patch from the Uconnect website. We cover that process from start to finish in the video, with the final portion still applicable to those using the FCA-supplied USB stick. If after watching this you still don't want to tackle the patch yourself, you can take your vehicle to the dealer to have it done. Also note that this process is the same for all Uconnect updates, not just the one patching the exploits. Our demonstrator vehicle is a 2015 Ram 1500 pickup. The procedure should be very similar on other products with the 8.4-inch Uconnect system, with only the location of the USB port varying. Once you have the USB stick with the software on it – either after having downloaded it yourself or receiving it in the mail from Chrysler – the installation process is relatively simple. It takes about 15 minutes to perform the update; we edited out the wait in the video. To check whether or not your car's 8.4-inch Uconnect system is running the latest software, go to System Information on the touch screen's Settings page and look at Software Version. The update related to the recall is version 15.17.5. Related Video: Recalls Chrysler Dodge Jeep RAM Safety Technology Infotainment Videos Original Video hacking