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FCA's Pentastar V6 gets more power, efficiency for 2016

Already a vital member of FCA's powertrain lineup, the 3.6-liter Pentastar V6 is receiving major efficiency improvements for 2016. Thanks to a massive amount of new tech attached to the mill, fuel economy is up six percent, and torque below 3,000 rpm jumps nearly 15 percent. The updates arrive first in the 2016 Jeep Grand Cherokee, but they should proliferate to other models eventually. At least in the Grand Cherokee, the tweaks push power up five horsepower to 295 ponies. FCA's engineers went through the Pentastar from top to bottom to eke out as much efficiency as possible. For example, there's now a two-speed variable-valve lift system that can run in low- or high-lift modes. This upgrade is responsible for 2.7-percent better economy, the company claims. A new intake manifold with longer runners and updated variable-valve times also helps boost the torque output. Further improvements come from pushing the compression ratio to 11.3:1, from 10.2:1 before. Perhaps most impressive is that despite all of the innovations, the latest Pentastar actually weighs four pounds less than the current version. Beyond the Pentastar improvements, all of the FCA US gasoline engines, except for the Viper's 8.4-liter V10, will be E15-compatible for 2016. The company says that it wants to be ready for the higher ethanol content fuel's greater use in the near future.

Jeep in St. Louis hacked from Pittsburgh

One of America's most popular vehicles contains a security flaw that allows hackers to remotely commandeer it from anywhere on the planet. Cyber-security researchers Chris Valasek and Charlie Miller say they've accessed critical vehicle controls on a 2014 Jeep Cherokee that allowed them to remotely control critical vehicle functions like braking, transmission function, and steering. Automakers have downplayed the possibility a car could be remotely compromised, but the significance of the findings detailed Tuesday could cause them to reevaluate the threats posed to hundreds of thousands of vehicles already on the road. A key finding – the pair needed no physical access to the Jeep to pull off the attack. Valasek and Miller accessed the controls via a security hole in the Sprint cellular connection to Chrysler's UConnect infotainment system. In the course of their research, Valasek sat in his Pittsburgh home and remotely manipulated Miller's Jeep as he drove along a highway outside St. Louis. If you know a car's IP address, they say, a hacker could control it from anywhere. "We didn't add anything, didn't touch it," Valasek told Autoblog. "A customer could drive one of these things off a lot, and they'd have no clue it had these open attack surfaces." Remotely, he disabled brakes, turned the radio volume up, engaged windshield wipers and tampered with the transmission. Further, they could conduct surveillance on the Jeep, measuring its speed and tracking its whereabouts. They conducted the experiments over multiple breaches. They made their findings public on the same day the National Highway Traffic Safety Administration, the federal agency in charge of vehicle safety, released its latest report on the readiness of government and automakers to fend off these sorts of cyber attacks. Later today, two US Senators are expected to introduce legislation that would help consumers better understand the potential risks of car hacking. In the early stages of their research, Valasek and Miller found a security flaw in the car's wi-fi that allowed them to remotely manipulate controls from a range of about three feet. But in recent months, they found another vulnerability in the Sprint cellular connection in the UConnect system. That was a key breakthrough. "Lo and behold, we found we could communicate with this thing using cellular, and then more research, and 'Holy cow,' we're using the Sprint network to communicate with these vehicles," Valasek said.

Jeep Wrangler pickup renderings: Latest imaginings of the Scrambler

The Jeep Wrangler-based JT pickup, which everybody refers to as Scrambler (boy, we're sure going to be surprised if that isn't the real name), doesn't hit the showroom floor until April 2019. That is a long time to wait. What's an impatient nation of Jeep fans to do in the intervening year? Speculate on what it looks like, of course. Jeep Scrambler Forum has sent renderings of the truck our way, shown in the photo gallery above. They depict the Scrambler in two scenes and in four classic colors: Sarge Green, Hella Yella, Sting-Gray and Firecracker Red. The illustrations, we're told, are based on "spy photos, CAD leaks and insider tips we've received." View 7 Photos Like the coming Ford Ranger, the Jeep truck stands to make a huge splash in the hot midsize pickup market, with Fiat-Chrysler CEO Sergio Marchionne saying he expects to see 100,000 Wrangler pickups sold each year. Compare these latest renderings with a set of renderings that ran back in June on JL Wrangler Forums. (We're reprising a gallery of them below, along with a gallery of spy shots.) You'll note some differences between them and the latest renderings, a key one being the seeming absence of that kink (Jeepmeister kink?) where truck cab meets bed. See what other differences you can spot. It'll be a good way to help pass the time until next April. Jeep Wrangler Pickup View 14 Photos View 21 Photos Related Video: This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings.