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Jeep Grand Cherokee SRT gets power increase, minor tweaks for 2015

As a brand within Fiat Chrysler Automobiles, SRT may have an uncertain future, but it's pumping out some seriously mean machines anyway. The supercharged Hellcat V8 may be gobbling up most of the headlines with its 707 horsepower, but even the Grand Cherokee SRT is getting some small updates for the 2015 model year.
Most importantly for many enthusiasts, the Grand Cherokee SRT is getting a slight power bump. Don't expect the 700+ hp from the Hellcat, but this SUV sees a modest 5-hp and 5-pound-feet of torque improvement to bring output to 475 hp and 470 lb-ft for its 6.4-liter V8 with an eight-speed automatic. The minor change doesn't change the sprint to 60 miles per hour, clocking in at the same 4.8 seconds, or the tow rating at 7,200 pounds. Still, more grunt is never a bad idea.
Another new addition is the Active Noise Canceling system as a standard feature for this powerful SUV. It adds four microphones around the vehicle and uses the stereo system to nullify extraneous sound. However, Jeep claims that the meaty exhaust note from the V8 still gets through into the cabin for driver enjoyment.

Watch this 650-hp Hennessey Jeep Grand Cherokee go from 0-60 in 3.9 seconds

Hennessey Performance Engineering has created an HPE650 package for the Jeep Grand Cherokee SRT fitted with the 6.4-liter Hemi engine. When it leaves the showroom floor it has 470 horsepower and gets from 0-60 miles per hour in 4.8 seconds. When it leaves Hennessey's garage floor after the upgrade it has 650 horsepower - 530 hp at the wheels, according to Hennessey - and gets to 60 mph in 3.9 seconds on its way to running the quarter-mile in 12.6 seconds.
There's more than just a Roots-type supercharger bolt-on, with ported cylinder heads and high-flow headers among the many changes made to the engine. You can watch this pre-2014 facelift silver model prove its spec sheet on the drag strip in the video below.

Stellantis announces ‘Circular Economy’ business to drive revenue, decarbonization

Stellantis has already announced its plans to reach net-zero carbon emissions by 2038. Today, the automaker has announced a new business unit to help it reach that goal while generating 2 billion euros per year in revenue by 2030. The “Circular Economy” business will help make revenue less dependent on finite, rare and ecologically problematic materials. The Circular Economy model features what Stellantis calls a “4R” strategy, comprising remanufacturing, repair, reuse and recycling. The goal is to make materials last as long as they can, reducing reliance on the acquisition of those precious new materials in the future by returning them to the business loop when theyÂ’ve reached the end of their first life. Through these processes, Stellantis says it can save up to 80% raw material and 50% energy compared to manufacturing a new part. Remanufacturing, or “reman” in Stellantis shorthand, means dismantling, cleaning and rebuilding parts to OEM spec. Nearly 12,000 remanufactured parts are available for customers to purchase. Some remanufacturing is done in-house, and some with partners and through joint ventures. Repair is pretty obvious — fixing parts to put back into vehicles. This also consists of reconditioning, to make a vehicle feel like new. Stellantis boasts 21 “e-repair” centers for repairing electric vehicle batteries.  Reuse refers to parts still in good condition from end-of-life vehicles sold as-is. Stellantis says it has 4.5 million multi-brand parts in inventory. These are sold in 155 countries through the B-Parts e-commerce platform. Reuse also refers second-life options, such as using batteries outside of automotive purposes. Recycling involves dismantling parts and scraps back into raw material form that is then looped back into the manufacturing process. Stellantis says it has collected 1 million parts for recycling in the past six months. Recycling doesnÂ’t get counted in that aforementioned 2 billion euros of revenue, but it does save the company money on acquisition of raw materials. As for batteries, specifically, Stellantis expects this recycling business to ramp up after 2030, when the packs currently in service begin to reach the end of their lifecycle. Stellantis will use its new “SUSTAINera” label to denote parts that are offered as part of its Circular Economy business.