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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.

Next Mercedes-Benz C-Class spotted in the snow

The entry-level Mercedes-Benz C-Class has long felt like nothing more than, well, just that. Aside from the potent and delicious C63 AMG models, there hasn't been much to set the C-Class apart in the entry-level luxury/sport segment, leading to the model being regarded by many as "The Cheap Mercedes." No, it's certainly not a bad car, but for our money, it hasn't stood up particularly well to competitors like the BMW 3 Series or Audi A4.
So with the handsome new CLA-Class coming to round off the entry-level end for Mercedes-Benz, big plans are in store for the C-Class. We can see some evidence of that in this latest set of spy shots from our friends at CarPix. According to earlier reports, the new C-Class will be "far more dramatic" in the visuals department, and while the sedan's sculpting is still covered by camo, the much sleeker headlamp design we see here is, at the very least, a good start. The car's overall size is expected to grow a bit to further distance itself from the CLA, though thanks to lightweight materials, curb weight isn't expected to increase.
Just like the current model, the new C-Class is expected to use four- and six-cylinder engines, both gas- and diesel-fed, and overall power output for the global engine range should span from 120-ish on the low end to as much as 330. These new engines are expected to be mounted lower and farther rearward than before, offering better balance for both rear- and 4Matic all-wheel drive configurations. And as for that AMG? Rumors suggest a turbocharged 4.0-liter V8 will fall underhood.

Mercedes Concept GLA45 AMG is ready to run

This is the Mercedes-Benz Concept GLA45 AMG, and what we mean by that is, "This is the Mercedes-Benz GLA45 AMG." Mercedes has just unveiled the liveried 'concept' at the 2013 Los Angeles Auto Show, giving potential customers a very good look at the newest lunatic in the AMG asylum - a 355-horsepower, 332-pound-foot crossover that uses the same 2.0-liter, turbocharged four-cylinder engine found in the CLA45 AMG and Europe's A45 AMG.
Joined with a seven-speed, AMG Speedshift dual-clutch transmission and an AMG Performance 4Matic all-wheel-drive system, Mercedes promises a sub-five-second run to 60 miles per hour. That's not just quick for a crossover, that's quick full stop.
That sleek, lifted body has also been tweaked by the minds at AMG's Affalterbach facility. A new rear spoiler, side sills and front clip are the primary aerodynamic tweaks. Aesthetically, AMG has fitted the requisite "Turbo" badges, gloss-black accents (including exhaust tips and roof rails) and a set of 21-inch, AMG-spec alloy wheels to round out the overall package. Based on the spy shots we've seen, expect slightly toned down aerodynamics when the GLA45 AMG arrives in showrooms.