2023 Jeep Grand Cherokee L Limited 4x4 on 2040-cars

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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.

Marchionne: Midsize pickup still not in the cards; Ram 1500, Jeep Wrangler could use aluminum

During the Fiat-Chrysler briefings on Tuesday, Reid Bigland, head of Ram Trucks, outlined the new product plans for his brand, including confirmation that an all-new light-duty Ram 1500 will launch in 2017. From there, discussions spun off in two directions, with the main questions being: will Ram build a midsize pickup? And, following Ford's move to extensively use aluminum in its new 2015 F-150, will Chrysler be using this weight-saving material for the next round of its fullsize truck, as well?
"I think there is room for a Ram 1000," Fiat-Chrysler CEO Sergio Marchionne (pictured above) told members of the media, saying this is a conversation the automaker has been having internally for several years now. "We've tried this ... we've actually taken it to clinics," Marchionne stated, adding that the "response has been lukewarm."
"I have better use of aluminum in this house than a pickup truck." - Sergio Marchionne

Stellantis expects to hit emissions target without Tesla's help

Franco-Italian carmaker Stellantis expects to achieve its European carbon dioxide (CO2) emissions targets this year without environmental credits bought from Tesla, its CEO said in an interview published on Tuesday. Stellantis was formed through the merger of France's PSA and Italy's FCA, which spent about 2 billion euros ($2.40 billion) to buy European and U.S. CO2 credits from electric vehicle maker Tesla over the 2019-2021 period. "With the electrical technology that PSA brought to Stellantis, we will autonomously meet carbon dioxide emission regulations as early as this year," Stellantis boss Carlos Tavares said in the interview with French weekly Le Point. "Thus, we will not need to call on European CO2 credits and FCA will no longer have to pool with Tesla or anyone." California-based Tesla earns credits for exceeding emissions and fuel economy standards and sells them to other automakers that fall short. European regulations require all car manufacturers to reduce CO2 emissions for private vehicles to an average of 95 grams per kilometer this year. A Stellantis spokesman said the company is in discussions with Tesla about the financial implications of the decision to stop the pooling agreement. "As a result of the combination of Groupe PSA and FCA, Stellantis will be in a position to achieve CO2 targets in Europe for 2021 without open passenger car pooling arrangements with other automakers," he added. Tesla's sales of environmental credits to rival automakers helped it to announce slightly better than expected first-quarter revenue this week. The next tightening of European regulations will soon be the subject of proposals from the European Commission. The 2030 target could be lowered to less than 43 grams/km. Related Video: Government/Legal Green Alfa Romeo Chrysler Dodge Fiat Jeep Maserati RAM Tesla Citroen Peugeot Emissions Stellantis