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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.

2017 Mercedes-Maybach S650 Cabriolet includes guaranteed exclusivity

For certain buyers, the only thing better than a super-luxurious cabriolet that requires enormous sums of money to buy is a a super-luxurious cabriolet that money can't buy. That's what Daimler promises with the 2017 Mercedes-Maybach S650 Cabriolet to be unveiled at the LA Auto Show. Limited to 300 units worldwide and just 75 in the US, having just three available color combinations magnifies the exclusivity. Turning the Mercedes-Benz S-Class cabrio into a droptop worthy of the Maybach family means slight revisions outside and in, and a whole lot of Maybach badges. Instead of the three lower intakes familiar from Mercedes' corporate language, there's black mesh highlighted by a shiny design element. It's not the most graceful face from dead-on, looking sort of like a chrome-lined grimace picked up from Wallace and Gromit. A Maybach emblem adorns the fenders and gleaming kickplates, the 20-inch wheels add an edge to the brand's traditional dinner-plate design. The 6.0-liter, twin-turbo V12 carries over from the donor convertible, with the same 621 horsepower and 738 pound-feet of torque hooked up to a seven-speed automatic transmission. The only three color treatments available in the US will be Zircon Red with a porcelain and black interior and a black top, Cote d'Azur Blue with a porcelain and saddle interior and a beige top, and Designo Diamond White with a porcelain and Yacht Blue interior with a dark blue top. The cabin works nautical themes lifted in part from the Mercedes-Benz Style Arrow 460-Granturismo yacht. Perforations in the leather seats evoke waterfalls. The "Flowing Lines" trim ornamenting the seats comes two different colors depending on the exterior hue; either "Piano lacquer" black with the Zircon Red or Magnolia Nut Brown with the other two options. Buyers will find profuse badging in embroidered, embossed, and inlaid varieties, as well as chrome-plated "1 of 300" lettering in several places like the cup holder and steering wheel. The few lucky customers who buy an S650 will also find a four-piece set of Maybach-badged luggage in the truck, two travel bags and two weekenders tooled up in the same leather as the interior. The key fob gets finished in Porcelain leather. A car cover comes standard, in the same color as the convertible top. A certificate signed by the mustachioed one, Daimler Chairman Dr. Dieter Zetsche, provides the corporate-badged icing on the cake.

Sunday Drive: From a mid-engine 'Vette to a restomod RV

Automotive enthusiasts are a diverse bunch. As proof, we present last week's top posts on Autoblog, starting with some really good spy photos of the upcoming mid-engine Chevrolet Corvette. Will it be sold alongside a classic front-engine 'Vette? We have no idea, but we can't wait to find out. Up next is a pickup truck. Can't get much further from a supercar, right? At least both the Corvette and the 2019 Ram 1500 – which will debut a radical new design that appears to eschew the mini big-rig look of past Rams in favor of something more refined – are both American. Decidedly not American? The Mercedes-Benz G-Class SUV. The boxy off-road 'ute looks a heck of a lot like the old one, which is probably a good thing, but we know it'll be fancier and more luxurious than ever before. Check out the leaked images below. Also hailing from Germany, but sharing absolutely nothing else in common at all, is the Audi A4 Allroad. We've been driving this all-wheel-drive wagon for a while now, and we like it quite a bit. And, last but not least, is a 1959 bus that's been converted into an RV. Like we said, y'all certainly are a diverse bunch. Mid-engine Corvette — our clearest pictures yet 2019 Ram 1500 shows its full face 2019 Mercedes-Benz G-Class revealed in leaked photos 2018 Audi A4 Allroad Drivers' Notes Review | Wagons still rule This Mercedes O 319 restomod camper van shames your VW Microbus Audi Chevrolet Mercedes-Benz RAM Truck Coupe Minivan/Van SUV Future Vehicles Luxury Off-Road Vehicles Special and Limited Editions Performance Supercars mid-engine corvette recap sunday drive