2006 Jeep Wrangler X 4x4 Convertible 4.0 6-speed 34k Mi Texas Direct Auto 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.

NHTSA investigating why Jeep recall fix is taking so long

Jeep's saga with the National Traffic Safety Administration and the voluntary campaign to repair 1.56 million vehicles for allegedly unsafe trailer hitches, is getting yet another chapter. The controversy appeared to finally be over in January when the automaker found a supplier for the replacement parts. Nothing is ever that easy, though, and the government regulator is now requesting documents from the company to clarify why the repairs are taking so long to begin.
Jeep parent company Chrysler has until July 16 to submit documents and answers to NHTSA explaining the situation. The regulator claims that despite its compromise to inspect and repair the models with improper hitches in June 2013, Chrysler didn't find a part supplier until December and didn't order the replacements until January. The government agency believes that the first components weren't manufactured until May of this year and vehicles may not actually be repaired until as late as August. According to the report, if the Chrysler doesn't supply what NHTSA is asking for, the agency could "take additional appropriate action as warranted."
Throughout this entire process, Chrysler has asserted that the vehicles met the applicable crash test standards of the time, and it has kept NHTSA abreast of the repair activity. In a recently released statement it said that the regulator analyzed eight rear impact reconstruction tests and found the replacement hitch to be safe. To keep up with the high demand for replacements, Chrysler is working with multiple suppliers, and they are running three shifts, six days a week to get the parts ready as soon as possible.

Poor headlights cause 40 cars to miss IIHS Top Safety Pick rating

Over the past few months, we've noticed a number of cars and SUVs that have come incredibly close to earning one of the IIHS's highest accolades, the Top Safety Pick rating. They have great crash test scores and solid automatic emergency braking and forward collision warning systems. What trips them up is headlights. That got us wondering, how many vehicles are there that are coming up short because they don't have headlights that meet the organization's criteria for an "Acceptable" or "Good" rating. This is a revision made after 2017, a year in which headlights weren't factored in for this specific award. This is also why why some vehicles, such as the Ford F-150, might have had the award last year, but have lost it for this year. We reached out to someone at IIHS to find out. He responded with the following car models. Depending on how you count, a whopping 40 models crash well enough to receive the rating, but don't get it because their headlights are either "Poor" or "Marginal." We say depending on how you count because the IIHS actual counts truck body styles differently, and the Infiniti Q70 is a special case. Apparently the version of the Q70 that has good headlights doesn't have adequate forward collision prevention technology. And the one that has good forward collision tech doesn't have good enough headlights. We've provided the entire list of vehicles below in alphabetical order. Interestingly, it seems the Volkswagen Group is having the most difficulty providing good headlights with its otherwise safe cars. It had the most models on the list at 9 split between Audi and Volkswagen. GM is next in line with 7 models. It is worth noting again that though these vehicles have subpar headlights and don't quite earn Top Safety Pick awards, that doesn't mean they're unsafe. They all score well enough in crash testing and forward collision prevention that they would get the coveted award if the lights were better.