2009 Jeep Wrangler 4dr 4wd 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 not looking for further mergers, including with Renault

MILAN — Stellantis Chairman John Elkann on Monday denied the carmaker was hatching merger plans, responding to press speculation about a possible French-led tie-up with rival Renault. Elkann said that the Peugeot owner, the world's third largest carmaker by sales, was focused on the execution of its long-term business plan. "There is no plan under consideration regarding merger operations with other manufacturers," said Elkann, who also heads Exor, the Agnelli family holding company that is the largest single shareholder in Stellantis. After abandoning the Russian market, at the time its second largest after France, and reducing the scope of its global cooperation with Nissan, Renault has been seen as a potential M&A target. Speculation intensified after an electric vehicle market slowdown forced it last week to cancel IPO plans for its EV and software unit Ampere. Its market cap remains stubbornly low at little over 10 billion euros ($10.8 billion) despite a financial recovery over the past few years. Stellantis, the product of a 2021 merger between France's PSA and Fiat Chrysler and one of the most profitable groups in the industry, has a market cap of more than 85 billion euros when unlisted shares are factored in. It has a 14 brand portfolio also including Citroen, Jeep, Opel and Alfa Romeo. NEWSPAPER REPORT Italian daily Il Messaggero had said on Sunday that the French government, which is Renault's largest shareholder and also has a stake in Stellantis, was studying plans for a merger between the two groups. A spokeswoman for Renault said on Monday the group did not comment on rumors. France's Finance Ministry had declined to comment on Sunday. Stellantis has crossed swords with the Italian government, which has accused it of acting against the national interest on occasions. Industry Minister Adolfo Urso last week raised the prospect of the Italian government taking a stake in Stellantis to help to balance the French influence. Renault shares pared gains after Elkann's comments to stand 1.2% higher by 1220 GMT, having initially risen more than 4%. Stellantis CEO Carlos Tavares, a Portuguese-national, last week said in an interview with Bloomberg that the group was "ready for any kind of consolidation" and that its job was to make sure that it would be "one of the winners". Analysts, however, question the rationale of a Stellantis-Renault merger, which would also expand the group's excess capacity in Europe.

Supplier says Jeep Cherokee hack only affects FCA cars

Harman doesn't think that drivers need to worry about any further hacks of its products. The company supplies FCA's Uconnect infotainment system where a software vulnerability is responsible for a 1.4-million vehicle recall. "This experimental hack is unique to Chrysler," Harman CEO Dinesh Paliwal said to Automotive News. "This does not exist, to our assessment, in any other vehicle." The reason that the company wouldn't be involved is that automakers aren't simply plugging in the existing infotainment systems into new vehicles. According to Paliwal, Harman supplies the unit, but FCA and other automakers are able to make additional modifications for their vehicles. The National Highway Traffic Safety Administration has also recently taken up the question of broader software vulnerabilities in Harman's products. On July 29, the agency began investigating the company to check for similarities between Uconnect and the infotainment systems supplied to other automakers. The Jeep hack became national news when two researchers were remotely able to take control of a Cherokee. The vulnerability in the cellular connection even gave control over the brakes. "Once people get in the car and get into the CAN bus, then you can start to mimic and mess up many, many things in the car," Paliwal said to Automotive News. Politicians immediately responded with legislation to create federal standards in hopes of protecting drivers better. NHTSA also opened an investigation to make sure the automaker's software update actually solved the problem. Related Video: