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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 A45 AMG in downhill battle with slipstream skateboarder

We're told it takes "performance, control and expression" to pilot a longboard skateboard down a mountain road, and that those happen to be the same values embodied in the Mercedes-Benz A45 AMG. That's how the two came to be combined in a black-and-white short film called Silver Slipstream.
There's no talking, no engine note and no color, just some music, a 'boarder and a car on a long cruise down the Franschhoek Pass in the Western Cape of South Africa." Despite that, it's actually a pretty entertaining video of the latest Mercedes-Benz hot hatch married with extreme sports. You can watch how it all goes down in the video below.

Mercedes-AMG teases GT interior, announces fall 2014 debut

Mercedes-Benz opted to tease the assembled media at its post-New York Auto Show party, showing off a pair of images of the exquisitely crafted interior of the highly anticipated successor of the SLS AMG - the V8-powered Mercedes-AMG GT.
Slated for a debut in the fall at either Paris or Los Angeles (we're betting Paris), you'll note straight away that there's something wrong with this car's name. Where's the "Benz?" Well, it's been ditched to, as Mercedes says, "make the dream of the authentic Mercedes-AMG sports car come true." Sorry Karl.
"The new Mercedes-AMG GT proves that we will be positioning AMG as a dynamic sports car brand even more strongly and aggressively than before," said Tobias Moers, CEO of Mercedes-AMG.