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Inline-6 Hemi replacement on the cusp of production from Stellantis

It appears that Stellantis is ready to put its long-rumored inline-six into production at its Saltillo, Mexico plant, possibly marking the beginning of the end of Chrysler's long-running 5.7L Hemi V8. But so far, the automaker's American brands have remained mum on where exactly the new turbocharged "Tornado" I6 may land. Stellantis powertrain blog Stellpower (by way of Muscle Cars & Trucks) spotted an entry for a new "GME T6" inline-six engine on the Saltillo facility's web site, suggesting that it was either in production or close to it. That entry has since been removed, but the mystery remains.  We've been hearing tidbits here and there about this new inline engine for years, but this is the first time we've seen anything suggesting its arrival is imminent. Usually, such a significant powertrain update would coincide with the launch of a new product to showcase it. So far, Stellantis has remained mum, even overseas, about where this engine is destined to reside. 2022 model year vehicles are likely off the table entirely.  But while it's common for new engines to debut with new cars and trucks, it's not a universal truth. Ford's Coyote V8 missed the corresponding Mustang refresh by a year, for example, orphaning the 2010 model and its much-needed styling updates with the old 4.6L V8 (and the 3.8L V6, for that matter; the 3.7L Duratec was also late to that party). Even sticking just to Stellantis, the JL Wrangler's powertrains have been a work in progress since it arrived back in 2018. The standard V6 and 2.0-liter turbo-4 debuted at launch; the EcoDiesel, 392 and 4xe all came later.  And 4xe may be the model by which to measure our expectations. Its introduction didn't come completely out of nowhere, but it was rather sudden for what turned out to be such a solid offering. That bodes well for the company's existing Hemi-powered trucks and SUVs. The Ram 1500, Jeep Grand Cherokee and Wagoneer are all strong candidates to receive the new Hemi replacement, as all would greatly benefit from even small improvements in fuel economy. If there's to be a future for the Dodge Charger and Challenger and Chrysler 300, they'd benefit too. And how about a Gladiator with the wick turned up, positioned as its equivalent to the Wrangler 392. Turn that Tornado into a Dust Devil. Don't worry; we've got plenty more where that came from.  Related Video This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings.

New Barracuda, Grand Cherokee Trackhawk coming soon

As we write this, Fiat Chrysler Automobiles is conducting a major dealership event in sunny Las Vegas. New vehicles are being announced, redesigned offerings are being teased, and promises are being made to the sprawling company's dealer body. And, as all these announcements are meant to be tip-top secret, they're leaking out left, right, and center. Naturally. FCA is telling its dealers all of the vehicles shown at the Vegas gala will be in showrooms within 12 to 24 months, and that the product offensive will include at least 30 new or significantly refreshed models. Some of those we've known about since FCA boss Sergio Marchionne unveiled his highly ambitious five-year plan in May 2014, while we're hearing about others for the very first time. We've reached out to our sources within FCA, and will update this post as we learn more. It should be noted that while we've tried to rely on concrete sources or corroborations from multiple sources, some of the news here comes from people claiming to have been in attendance and posting in forums like Allpar and Jalopnik's Opposite Lock. Unless corroborated by a mainstream source or confirmed by our own sources within FCA, we're listing each item that comes from a forum. Have those grains of salt at the ready. Chrysler Dodge Durango-sized SUV with stow-and-go was shown. A poster on Allpar Forums claims it had a Durango's interior. New Aspen? Town and Country PHEV confirmed (again). A plug-in minivan was originally announced as part of five-year plan. No news on 200 or 300. Dodge The redesigned Charger will use the Alfa Romeo Giulia's rear-drive platform and, according Automotive News, draw inspiration from 1999's Charger concept car. We're wagering the 24-month time frame specified to dealers will move the new sedan's arrival up from 2018 to mid-2017. Jalopnik's Opposite Lock claims two new Challenger models are coming. Challenger ADR (American Drag Racer) and T/A. ADR should appeal to bracket racers and is more powerful than the SRT Hellcat, while T/A is for track rats, just like Viper T/A. Automotive News claims the legendary Barracuda nameplate will be revived as a Dodge. The Barracuda will be smaller than Challenger, offered as both a coupe and a convertible. Allpar claims it will feature modern styling. A Dodge Durango SRT was announced with 6.4-liter Hemi V8 and rear-drive. Sources within FCA confirmed its arrival with Autoblog. Apparently, dealers were shown an example in B5 Blue.

Here's what it'll take to build a Jeep Grand Cherokee Hellcat

Let's get one thing straight: We want a 707-horsepower Grand Cherokee Hellcat to happen. Badly. The latest report from Motor Authority is encouraging; the bonkers SUV supposedly has a codename, Project K, and has been given the green light for production. Fingers crossed. You might be wondering why the Trackhawk isn't already a thing. Hellcat engines exist, SRT Grand Cherokees exist, so just combine the two, right? It's not quite that easy. Here, we outline what needs to happen, why it should be the quickest Hellcat vehicle out there, and why it won't come anywhere near 200 miles per hour. How To Build A Hellcat Jeep The first engineering problem is feeding the air-intensive beast that is the 6.2-liter supercharged V8. The first engineering problem is feeding the air-intensive beast that is the 6.2-liter supercharged Hellcat V8. Breathing is important on two counts: pulling in enough air for the combustion to put out 707 hp, and then cooling the various heat exchangers once the engine is up to temperature. Dodge did it with the Charger and Challenger, it can do it with the Jeep. This is one place where the Grand Cherokee's larger frontal area might be a boon, as it gives the engineers more surfaces through which to suck air. Once you generate the 707 horsepower and 650 pound-feet of torque, it has to get to the wheels somehow. Jeep's current SRT all-wheel-drive system will at least need some beefing up to handle the torque. It could require a more complete re-engineering. We at least know the ZF-supplied eight-speed auto, used in the Dodge Hellcat models, is up to the task. The Hellcat engine should fit in the Grand Cherokee, as it's about the same size as the 6.4-liter currently in SRT Jeeps, but the Hellcat is taller because of its supercharger. The hood may need to be raised or at least resculpted for clearance, as well as to address those cooling needs. Quicker Than Everything, But Not Faster 200 mph? We're skeptical, from both a physics standpoint and a legal one. A reminder of the quick/fast distinction: quick is acceleration, fast is road speed. The Jeep's all-wheel drive will help put the Hellcat engine's power to the ground in a more manageable way than the Charger and Challenger do through just the rear wheels. That means better acceleration times than the Dodges (11.0 seconds in the quarter-mile for the Charger Hellcat, 11.2 for its Challenger sibling).