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Carlsson turns Mercedes-Benz SLK into 610-HP hill-climb clawer

Carlsson's race-tuned versions of the Mercedes-Benz SLK have been taking checkered flags for years, and we won't be surprised if its SLK 340 hill climber fares any different. Developed by multiple German and Swiss hill climb champion Reto Meisel, the carbon-bodied SLK 340 with lightweight brakes and a closed underbody weighs 1,716 pounds. Propelling that tiny bit of weight is a 3.4-liter V8 from Judd with 610 horsepower, and it rolls on 18-inch wheels shod in Avon tires.
It will debut at the Geneva Motor Show before beginning its racing campaigns in the summer. This one won't just tear up roads in Europe, though - Meisel says he plans on bringing it to the Pikes Peak International Hill Climb. The press release below has more details.

Mercedes-Benz GLA Concept gets mobbed in China

If the reception it received at the Shanghai Motor Show is any judge of marketplace acceptance, Mercedes-Benz has a hit on its hands in the form of the GLA Concept. And we can understand why - we're quickly becoming fans of Mercedes' recent styling language, as defined by new models like the CLA and this GLA Concept.
The big news on the exterior front are the headlamp clusters, which have frickin' laser beams attached to their foreheads embedded inside that are capable of projecting videos and images on a screen. Plus, a pair of video cameras are mounted on the roof that can be used to capture driving excitement or removed and taken with you. How cool is that? We just hope they have a substantial locking mechanism to prevent would-be thievery...
If the exterior is mostly ready for production, with a few of the more outlandish elements moved to the trash bin - like, for instance, laser-beam headlamps and removable action cams - the interior is a true custom job that screams concept loud and clear. There are all kinds of jewel-like finishes inside, along with transparent surfaces showing what looks like metal latticework underneath and some awfully thick looking leather with massive exterior stitching done by hand similar to what you'd find on a baseball glove.

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.