1994 Jeep Grand Cherokee Laredo Sport Utility 4-door 4.0l on 2040-cars

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Jeep Grand Cherokee Trackhawk undisguised with Hellcat power

Superchargers make everything better. Mount one to the top of a 6.2L Hemi V8 and pack it under the hood of a Jeep Grand Cherokee and you have a recipe for a completely bonkers, wholly unnecessary, and totally sweet SUV. We've known for a while that the so-called Trackhawk, essentially a Hellcat Jeep, is on its way. We now have photos of a completely undisguised test vehicle on public Michigan roads trying to make its way to SRT headquarters. Jeep already makes an SRT version of the Grand Cherokee. That version only puts out a measly 475 hp and 470 pound-feet of torque from a 6.4L Hemi. After developing a couple of 707-hp Dodges, SRT felt that Jeep needed some of that Hellcat love too. In the photos, we can see that, aside from the front fascia, the Trackhawk will look fairly similar to the standard SRT Grand Cherokee. The front retains the requisite Jeep grille, though it's been narrowed a bit to make room for larger air intakes below. The Hellcat engine creates a lot of heat, so designers needed to make sure the beast has plenty of room to breathe. New LED fog lights have been integrated into lower air ducts. We still don't know many of the Trackhawk's finer details, like the exact price or release date. We do know that Jeep claims a 3.5-second 0-60 time, making it both the quickest-accelerating Hellcat-powered vehicle and one of the quickest-accelerating vehicles in the world. For comparison, BMW claims the X5 M will do 0-60 in 4 seconds flat. Related Video: Featured Gallery Grand Cherokee Trackhawk View 9 Photos Spy Photos Jeep SUV

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, IIHS, and 20 automakers to make auto braking standard by 2022

The National Highway Traffic Safety Administration, the Insurance Institute for Highway Safety and virtually every automaker in the US domestic market have announced a pact to make automatic emergency braking standard by 2022. Here's the full rundown of companies involved: BMW, Fiat Chrysler Automobiles, Ford, General Motors, Honda, Hyundai, Jaguar Land Rover, Kia, Mazda, Mercedes-Benz, Mitsubishi, Nissan, Subaru, Tesla, Toyota, Volkswagen, and Volvo (not to mention the brands that fall under each automaker's respective umbrella). Like we reported yesterday, AEB will be as ubiquitous in the future as traction and stability control are today. But the thing to note here is that this is not a governmental mandate. It's truly an agreement between automakers and the government, a fact that NHTSA claims will lead to widespread adoption three years sooner than a formal rule. That fact in itself should prevent up to 28,000 crashes and 12,000 injuries. The agreement will come into effect in two waves. For the majority of vehicles on the road – those with gross vehicle weights below 8,500 pounds – AEB will need to be standard equipment by September 1, 2022. Vehicles between 8,501 and 10,000 pounds will have an extra three years to offer AEB. "It's an exciting time for vehicle safety. By proactively making emergency braking systems standard equipment on their vehicles, these 20 automakers will help prevent thousands of crashes and save lives," said Secretary of Transportation Anthony Foxx said in an official statement. "It's a win for safety and a win for consumers." Read on for the official press release from NHTSA. Related Video: U.S. DOT and IIHS announce historic commitment of 20 automakers to make automatic emergency braking standard on new vehicles McLEAN, Va. – The U.S. Department of Transportation's National Highway Traffic Safety Administration and the Insurance Institute for Highway Safety announced today a historic commitment by 20 automakers representing more than 99 percent of the U.S. auto market to make automatic emergency braking a standard feature on virtually all new cars no later than NHTSA's 2022 reporting year, which begins Sept 1, 2022. Automakers making the commitment are Audi, BMW, FCA US LLC, Ford, General Motors, Honda, Hyundai, Jaguar Land Rover, Kia, Maserati, Mazda, Mercedes-Benz, Mitsubishi Motors, Nissan, Porsche, Subaru, Tesla Motors Inc., Toyota, Volkswagen and Volvo Car USA.