2011 Jeep Grand Cherokee 4x4 - 70th Anniversary Edition 5.7l Hemi V8 on 2040-cars

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'84 MotorWeek Cherokee, Bronco and Blazer comparison indulges your SUV nostalgia

These days, truck-based, full-frame SUVs are somewhat of a rarity on the auto landscape due to the rapid rise in popularity of easier-driving, car-based crossovers. Although, without the gradually building popularity of these chunky, high-riding vehicles decades ago, it's unlikely that America's roads would be filled with so many CUVs today. In its latest dig into the archives, MotorWeek has found a 1984 comparison test of a trio of these early Sport Utility Wagons, as long-time host John Davis called them, that helped get acceptance of this segment going. This is a red, white and blue test of the SUVs from American automakers at the time and pits the Chevrolet Blazer, Ford Bronco and Jeep Cherokee (specifically in Wagoneer guise) against each other. Driving manners and interior usability are considered in the evaluation, but Motorweek actually takes these vehicles off road, too. Among the bigger revelations is the improvement in on-road ability in the past 30 years. While specific 0-60 times aren't given, all three models take around 10 seconds just to get to around 50 miles per hour in the 500-feet on-ramp acceleration test. Check out this clip to see just how far this segment has progressed in the past three decades or just get a blast of nostalgia from these now vintage models. News Source: MotorWeek via YouTube Chevrolet Ford Jeep SUV Off-Road Vehicles Classics Videos Ford Bronco chevy blazer

2019 Jeep Renegade, Fiat 500X fuel economy revealed, slightly improved

The 2019 Jeep Renegade and Fiat 500X twins each get a new engine option, a turbocharged 1.3-liter four-cylinder. At 177 horsepower and 210 pound-feet of torque, it's substantially more potent than the 160-horsepower turbocharged 1.4-liter engine it replaces, and nearly matches the naturally aspirated 2.4-liter engine for power while beating its 175 pound-feet of torque. But we haven't known until now is how the new engine fares in terms of fuel economy. The numbers are a little tricky to parse, since both the Jeep and Fiat have changed what transmissions are available, as well as what combinations of engine and driveline are offered. We'll start with looking at the Jeep Renegade. It offers both the new turbo engine and the old 2.4-liter engine, but the manual transmission is gone, and the Renegade Trailhawk gets the turbo engine instead of the naturally aspirated one. All the numbers are below. Overall, the new turbo engine coupled with front-drive and the standard nine-speed auto returns better fuel economy than even the old manual-equipped combo. Both all-wheel-drive models do worse, though, with the automatic and the new engine than with the old engine with a manual. The new turbocharged Trailhawk also doesn't do as well on the highway as the old model, but does better in town. Fuel economy is unchanged for the 2.4-liter versions of the Renegade. 2019 Fiat 500X View 11 Photos The Fiat 500X range is simpler to follow, since only one variant is available now: the turbo 1.3-liter engine with all-wheel drive and an automatic. It's not quite as frugal as the fuel-sipping manual, front-drive turbo model from last year, but it does offer noticeable gains over the 2.4-liter versions. All the numbers are below.

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.