1988 Jeep Wrangler 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.

Stellantis is official: FCA and PSA merger finally sealed

MILAN — Fiat Chrysler and PSA sealed their long-awaited merger on Saturday to create Stellantis, the world's fourth-largest auto group with deep enough pockets to fund the shift to electric driving and take on bigger rivals Toyota and Volkswagen. It took over a year for the Italian-American and French automakers to finalize the $52 billion deal, during which the global economy was upended by the COVID-19 pandemic. They first announced plans to merge in October 2019, to create a group with annual sales of around 8.1 million vehicles. "The merger between Peugeot S.A. and Fiat Chrysler Automobiles N.V. that will lead the path to the creation of Stellantis N.V. became effective today," the two automakers said in a statement. Shares in Stellantis, which will be headed by current PSA Chief Executive Carlos Tavares, will start trading in Milan and Paris on Monday, and in New York on Tuesday. Now analysts and investors are turning their focus to how Tavares plans to address the huge challenges facing the group – from excess production capacity to a woeful performance in China. Tavares will hold his first press conference as Stellantis CEO on Tuesday, after ringing NYSE's bell with Chairman John Elkann. FCA and PSA have said Stellantis can cut annual costs by over 5 billion euros ($6.1 billion) without plant closures, and investors will be keen for more details on how it will do this. Marco Santino, a partner at consultants Oliver Wyman, said he expected Tavares to disclose the outlines of his action plan soon, but without divulging too many details at first. "He has proven to be the kind of person who prefers action to words, so I don't think he will make loud statements or try to over-sell targets," he said. Like all global automakers, Stellantis needs to invest billions in the years ahead to transform its vehicle range for the electric era. But other pressing tasks loom, including reviving the group's lagging fortunes in China, rationalizing its huge global empire and addressing massive overcapacity. "It will be a step by step process, also to allow the market to better appreciate every single move. I don't think we will have all the details before one year," Santino said.

NHTSA closes probes on Jeep Grand Cherokee, Ford Freestar and Mercury Monterey

The Detroit News reports the National Highway Traffic Safety Administration has officially closed its investigations into 2012 Jeep Grand Cherokee, 2004-2005 Ford Freestar and Mercury Monterey models. The separate probes found no issues that pose safety concerns. NHTSA began investigating certain Grand Cherokee SUVs over complaints that power steering hoses could detach during operation, thereby increasing the risk of a vehicle fire. Of the 24 reports of failure, none alleged smoke or fire in the engine bay, and Chrysler has since modified the power steering cooler assembly to reduce the likelihood of the failure.
Meanwhile, certain Ford Freestar and Mercury Monterey vehicles garnered a government probe after receiving complaints that the models were equipped with faulty scissor jacks. The agency had received six reports of the jacks failing or causing injuries, including one incident that resulted in a fatality. But NHTSA says the jack failure rate is similar to those found in other vehicles. In those six cases, the government agency found the jacks were being used for something other than changing a tire, and investigators could not determine whether the emergency brake was set or the rear tires were properly chocked.