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EPA suspected Fiat Chrysler of using 'defeat device' in 2015

U.S. regulators told Fiat Chrysler Automobiles in November 2015 that they suspected some of the automaker's vehicles were equipped with secret software allowing them to violate emission control standards, according to emails disclosed on Friday. The U.S. Environmental Protection Agency and California Air Resources Board accused Fiat Chrysler in January of using the software, known as a "defeat device," to illegally allow excess diesel emissions in 104,000 Jeep Grand Cherokees and Dodge Ram 1500 trucks built between 2014 and 2016. Byron Bunker, director of the EPA's Transportation and Air Quality compliance division, said in a January 2016 email to Fiat Chrysler, obtained by Reuters under the Freedom of Information Act, that he was "very concerned about the unacceptably slow pace" of the automaker's efforts to explain high nitrogen oxide emissions from some of its vehicles. Nitrogen oxide is linked to smog formation and respiratory problems. Bunker's email said the EPA had told Fiat Chrysler officials at a November 2015 meeting that at least one auxiliary emissions control device on the car maker's vehicles appeared to violate the agency's regulations. Mike Dahl, head of vehicle safety and regulatory compliance for Fiat Chrysler's U.S. unit, responded in a separate email that the company was working diligently and understood the EPA's concerns. He added that if the EPA identified Fiat Chrysler vehicles as containing defeat devices it would result in "potentially significant regulatory and commercial consequences." The documents redacted the vehicles named, but two officials briefed on the matter said they referred to diesel models. The EPA's November 2015 meeting with Fiat Chrysler came two months after Volkswagen AG, mired in a major tailpipe emissions scandal, admitted to installing secret defeat device software in hundreds of thousands of U.S. diesel cars to make them appear cleaner than they were on the road.

Here's what it'll take to build a Jeep Grand Cherokee Hellcat

Let's get one thing straight: We want a 707-horsepower Grand Cherokee Hellcat to happen. Badly. The latest report from Motor Authority is encouraging; the bonkers SUV supposedly has a codename, Project K, and has been given the green light for production. Fingers crossed. You might be wondering why the Trackhawk isn't already a thing. Hellcat engines exist, SRT Grand Cherokees exist, so just combine the two, right? It's not quite that easy. Here, we outline what needs to happen, why it should be the quickest Hellcat vehicle out there, and why it won't come anywhere near 200 miles per hour. How To Build A Hellcat Jeep The first engineering problem is feeding the air-intensive beast that is the 6.2-liter supercharged V8. The first engineering problem is feeding the air-intensive beast that is the 6.2-liter supercharged Hellcat V8. Breathing is important on two counts: pulling in enough air for the combustion to put out 707 hp, and then cooling the various heat exchangers once the engine is up to temperature. Dodge did it with the Charger and Challenger, it can do it with the Jeep. This is one place where the Grand Cherokee's larger frontal area might be a boon, as it gives the engineers more surfaces through which to suck air. Once you generate the 707 horsepower and 650 pound-feet of torque, it has to get to the wheels somehow. Jeep's current SRT all-wheel-drive system will at least need some beefing up to handle the torque. It could require a more complete re-engineering. We at least know the ZF-supplied eight-speed auto, used in the Dodge Hellcat models, is up to the task. The Hellcat engine should fit in the Grand Cherokee, as it's about the same size as the 6.4-liter currently in SRT Jeeps, but the Hellcat is taller because of its supercharger. The hood may need to be raised or at least resculpted for clearance, as well as to address those cooling needs. Quicker Than Everything, But Not Faster 200 mph? We're skeptical, from both a physics standpoint and a legal one. A reminder of the quick/fast distinction: quick is acceleration, fast is road speed. The Jeep's all-wheel drive will help put the Hellcat engine's power to the ground in a more manageable way than the Charger and Challenger do through just the rear wheels. That means better acceleration times than the Dodges (11.0 seconds in the quarter-mile for the Charger Hellcat, 11.2 for its Challenger sibling).

Least satisfying vehicle rankings seek to highlight the worst cars of the year

Consumer Reports polls its members on all sorts of topics related to how they buy and use products ranging from mobile phones to humidifiers for indoor plants. Cars are regularly one of CR’s most interesting topics, and its recent study on the least satisfying vehicles to own offers insights into the cars people wish they hadnÂ’t purchased. CR polled thousands of members with questions about what they liked and disliked about the vehicle theyÂ’d owned for a few years. When asked if they would definitely repurchase the same car, the following vehicles came back as the least likely to be purchased a second time: Kia Forte: 51% would buy again Nissan Altima: 51% would buy again Nissan Kicks: 49% would buy again Volkswagen Taos: 48% would buy again Kia Seltos: 48% would buy again Jeep Compass: 46% would buy again Mercedes-Benz GLA: 45% would buy again Infiniti QX50: 40% would buy again Mercedes-Benz GLB: 39% would buy again Volkswagen Atlas Cross Sport: 38% would buy again When Autoblog tested the VW Atlas Cross Sport in March 2022, we liked the styling and the price was right, but it lagged rivals in driving excitement and interior quality. A number of recalls donÂ’t help the Cross SportÂ’s cause much, either, as some models have more than a dozen actions by the National Highway Traffic Safety Administration. Even the 2023 model already has four recalls. The annoyance of recalls and the hassle of just-average reliability ratings could have played into the Cross SportÂ’s place as the least satisfying vehicle. On the other end of the spectrum, the Chevrolet Corvette earned the top spot as CR's most satisfying car. The Porsche 911, Rivian R1T, Ford Maverick Hybrid, and Hyundai Ioniq 5 round out the top-five most satisfying vehicles to own. Given the rabid following the 911 has built over the years and the insane performance Chevy derived from the latest Corvette, itÂ’s not surprising to see them in the top spots. Related video: This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. Green Infiniti Jeep Kia Mercedes-Benz Nissan Volkswagen Car Buying Used Car Buying Consumer Reports worst cars