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Jeep Wrangler diesel likely after 2015 model refresh

We automotive journalists aren't always the right people to ask about whether a US-spec vehicle should or should not be offered with a diesel powertrain (hint: the answer is usually "YES"). But when it comes to the iconic, off-road-ready Jeep Wrangler, we aren't the only ones who have been clamoring for an oil-burning engine behind that famous seven-slat grille. To that end, it appears there's good news on the horizon, as Jeep CEO Mike Manley recently told Ward's Auto that the "Wrangler is on the radar to get (a) diesel."
"I'm confident that the Grand Cherokee will show just how large a demand there is for diesel, and I think what that will do is reinforce the need for us to target Wrangler as a vehicle that can take a diesel," Manley told Ward's. The most rugged of Jeeps is scheduled to get an overhaul around 2015-16, and the diesel powertrain will likely be introduced around that time.
This year alone, Chrysler will be adding a diesel engine to the Grand Cherokee SUV, as well as the Ram 1500 pickup and Promaster utility van.

NHTSA boss Strickland weighs in on Jeep recall fracas

Adding yet another chapter to the ongoing Jeep recall story, the National Highway Traffic Safety Administration (NHTSA) head David Strickland has gone on record to defend the government's request that Chrysler recall 2.7 million out-of-production Jeep Grand Cherokee and Jeep Liberty vehicles after the agency investigated fiery rear-end collisions that have reportedly killed at least 51 people over the years. In statements made to The Detroit News, Strickland said, "We felt very strongly that the process that we undertook and the findings that we made and ... we made the decision to issue a recall request. We do not take that very lightly." The top US auto safety regulator stopped short of telling owners to park their cars until the automaker takes action. "They can make their own risk assessment and their own choices," he said.
Chrysler does not intend to recall the models, insisting the "vehicles met and exceeded all applicable requirements of the Federal Motor Vehicle Safety Standards, including FMVSS 301, pertaining to fuel-system integrity" when they were manufactured and sold. "The company does not agree with NHTSA's conclusions and does not intend to recall the vehicles cited in the investigation. The subject vehicles are safe and are not defective," Chrysler announced last week in a statement. "We believe NHTSA's initial conclusions are based on an incomplete analysis of the underlying data, and we are committed to continue working with the agency to resolve this disagreement."
Legally, Chrysler has until June 18 to formally respond to NHTSA's request. If the automaker does not take action, NHTSA is expected to issue a formal finding and seek a recall.

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.