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VW joins Daimler's protest of new A/C refrigerant as EU deadline for compliance passes

The case of Dupont and Honeywell's refrigerant R-1234yf is doing the exact opposite of keeping things cool. The two chemical companies have spent years and hundreds of millions of dollars developing R-1234yf to replace R-134a, the new refrigerant shown to be 99.7-percent kinder to the environment than the one it is meant to succeed. Part of that development has been years of testing by governments, outside safety agencies and automakers to approve the chemical for use in cars. It passed the protocols necessary for the European Union to declare that new and significantly revised cars from 2013 onward needed to use R-1234yf, and mandated that every car as of 2017 must use it.
Enter Daimler AG. The automaker created a head-on collision test with a B-Class at their Sindelfingen test track that would lead to the pressurized refrigerant being sprayed on the engine. The result in 20 out of 20 test was that the refrigerant burst into flames as soon as it hit the hot engine, while Daimler says that R-134a does not catch fire in the same test. Another unexpected result of the R-1234yf test was the release of hydrogen flouride, a chemical far more deadly to humans than hydrogen cyanide, emitted in such amounts that it that turned the windshield white as it began to eat into the glass.
Said a Daimler engineer in a Reuters piece, "It was scarcely believable. The most complicated lab tests conducted using the most sensitive measuring instruments around found nothing and all we do is drive a car around a couple of times, open a tiny hole in the refrigerant line and the next thing you know the car is on fire." So Daimler said it wouldn't use the refrigerant, and it recalled the cars it had already shipped with R-1234yf.

Mercedes-Maybach SL 680 Monogram Series gives the rich and famous what they want

TOPANGA, Calif. – Give the people what they want, right? Especially if they're extremely wealthy. And possibly famous.  Apparently, the requests for a convertible Maybach from existing owners and/or celebrities were so frequent and insistent that the uber-luxury offshoot of Mercedes-Benz finally decided to give them just that. The 2025 Mercedes-Maybach SL 680 Monogram Series answers the call. While all other Maybachs are based on a Mercedes-Benz, this is the first Maybach to be based on a car developed by AMG: the current-generation SL 55 and SL 63. This presented a greater challenge to engineers than past efforts. Although a sportier Maybach was intended (as opposed to modern Maybach's first drop-top effort, the Maybach S 650 Cabriolet), the SL 680 is, not surprisingly, seeking a much different dynamic end goal than its AMG-only cousins. According to Maybach product manager Hannes Meyer, the far shorter wheelbase than the Maybach norm was a particular challenge in making sure that its convertible offering maintained "the same ease and nearly floating driving experience" expected of the brand. To that end, the Maybach SL shares the SL 63's air suspension and trick AMG Active Control interconnected hydraulically controlled dampers, but the tuning is changed, especially with the rear air springs as the driver sits closer to those. Meyer says the damper valves in particular have a greater range between sportiness and comfort than the SL 63. The steering system is totally Maybach-specific, including a different ratio and more upright front camber, resulting in what Meyer described as a more stable and less aggressive setup than what you'd find in the SL 63.  Before you start looking for a 6.8-liter engine in the Mercedes arsenal, remember that those numbers don't really mean anything anymore. The Maybach SL 680 has exactly the same 4.0-liter twin-turbo V8 as the SL 63 good for 577 horsepower and 590 pound-feet of torque. The nine-speed AMG transmission is the same in terms of hardware, but it has totally different software. In particular, the 2-3 and 3-4 shifts are most different in order to provide a smoother, more Maybach acceleration experience. The 4Matic+ all-wheel-drive system is also shared, but is programmed to have a more balanced front-to-rear power split than the rear-biased AMG. Finally, the exhaust has been retuned. Meyer said that up to 2,800 rpm, the exhaust isn't quieter than what you'd experience in the AMGs, it just has a different tone.

Smart Cross Connect app changes how ForTwos get used [UPDATE]

UPDATE: The story's been updated with a response from a Smart representative. There are parking spaces, and then there are Fortwo parking spaces. Smart, which is owned by Mercedes-Benz parent Daimler, is looking for a way for its customers to take advantage of the difference. Think of it as a big thing for really small cars. Smart is working on an app for the redesigned Fortwo called Cross Connect that will be available as soon as next month, says Automotive News, citing Smart chief Annette Winkler. The idea is to connect owners of the diminutive two-seat vehicles to, for example, let them tell each other when there's a parking space that's too small for just about any other vehicle but big enough for a Smart. If you think that's a small thing, think again. The Fortwo is 8 feet, 10 inches long. That's almost six feet shorter than a Toyota Prius, which itself isn't exactly a stretch limo. In fact, the length of a Smart Fortwo is just 10 inches longer than the width of a Ford F-150, in case anyone was having misgivings about parking perpendicular in a parallel spot. Parking has become more relevant, and tougher, as more people move to urban centers. For instance, BMW said earlier this month that it would discontinue its DriveNow car-sharing operations in San Francisco because of the challenge of parking vehicles on that city's streets. Other possible amenities with the Cross Connect app including the enabling of personal car sharing as well as information on car washes that offer discounted rates for Smart Fortwo. Yes, there are some out there, apparently, and we salute them. Michael Minielly, a spokesman for Mercedes-Benz, confirmed to Autoblog that the Cross Connect features would be available in November. You can read Autoblog's driving impressions of the 2016 Fortwo here. Featured Gallery 2016 Smart ForTwo: Second Drive View 23 Photos News Source: Automotive News-sub.req.Image Credit: Drew Phillips Green Mercedes-Benz smart Technology Smartphone fortwo