2018 Jeep Wrangler Rubicon 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.

How to update and secure a vulnerable Chrysler Uconnect system

If you own one of the 1.4 million vehicles affected by the recent Chrysler software recall, you may want to watch this video. In it, we explain how to get the latest infotainment software loaded onto the 8.4-inch Uconnect system. The recall was a response to the findings of researchers who were able to hack into and remotely control a 2014 Jeep Cherokee through its cellular connection. Although Fiat Chrysler has worked with Sprint to plug most of the holes on the carrier side, there are still some vulnerabilities that only this latest software version can patch. Owners have three options to get the update: download it now, wait for a USB stick in the mail, or take the vehicle to an FCA dealer. Chrysler will be sending USB sticks loaded with the software update to customers. Anyone with an internet connection and a USB stick of their own with at least 4 GB capacity can speed things up by downloading the patch from the Uconnect website. We cover that process from start to finish in the video, with the final portion still applicable to those using the FCA-supplied USB stick. If after watching this you still don't want to tackle the patch yourself, you can take your vehicle to the dealer to have it done. Also note that this process is the same for all Uconnect updates, not just the one patching the exploits. Our demonstrator vehicle is a 2015 Ram 1500 pickup. The procedure should be very similar on other products with the 8.4-inch Uconnect system, with only the location of the USB port varying. Once you have the USB stick with the software on it – either after having downloaded it yourself or receiving it in the mail from Chrysler – the installation process is relatively simple. It takes about 15 minutes to perform the update; we edited out the wait in the video. To check whether or not your car's 8.4-inch Uconnect system is running the latest software, go to System Information on the touch screen's Settings page and look at Software Version. The update related to the recall is version 15.17.5. Related Video: Recalls Chrysler Dodge Jeep RAM Safety Technology Infotainment Videos Original Video hacking

Crawling Moab in the 2015 Jeep Renegade Trailhawk [w/video]

The funny thing about the Renegade Trailhawk is that Jeep still feels the need to defend it. For the past 20 years, automakers have sent emissary vehicles outside the citadel walls surrounding their brand niche. In doing so, these companies found buyers eager to join the cult instead of an angry horde. With the kingdom successfully expanded, automakers had to build new walls to contain this broader identity. This is the story of Jeep's modern expansion, growing with new models while the faithful at the brand's center howl at every quest into broader market segments. Thirteen years after it busted out the Liberty and eight years after birthing the Compass and Patriot, you'd think the resistance to new Jeeps would subside. But no. It's 2015, and while nobody makes the slightest tantrum over BMW's new minivan (except for Sniff Petrol), the Renegade still has to fight its way through pitchforks and torches. Which is a long way of saying that this author is guilty of brand prejudice, too. When the company told us that we'd spend the first day of the Easter Jeep Safari driving seven awesome concepts and the second day driving the Renegade Trailhawk on Dome Point Trail, we could only think, "They giveth excitement, and they taketh it away." Our pessimism was later proven to be incorrect. Sharing the sentiment our colleague Brandon Turkus expressed after his Quick Spin, we found the Renegade to be "in a word, impressive." Dome Point will not trouble a kitted-out Wrangler, but in a compact SUV with on-road tires the rocky sections were chunky enough to require close attention to your lines or use a spotter. As instructed, we put the little 4x4 into the Selec-Terrain's Rock mode, and with common sense plus one eye on the man directing us with hand signals the Renegade climbed over everything with some wheelspin but little fuss. At the first rest point, we turned the car off to wait for vehicles behind. Not realizing that this resets the drive mode to Auto, we crawled through the next two rocky jumbles in the default setting. The result was the same: a bit of wheelspin climbing over thick steps, but an altogether drama-free passage. Auto mode can't use the engine throttle maps unique to each Selec-Terrain setting, but it doesn't hamper the Renegade's capability by much. On a steep bit of trail with a crest capped by stacked stone plinths, it took three tries to find the right line, but that's on us – the Renegade did more than expected.