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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 to market Tesla-powered 2014 B-Class EV in U.S.

Looks like another Tesla Motors investor will be looking to cash in on their connection. Autoweek reports Mercedes-Benz will offer their B-Class in the U.S. with Tesla propulsion.
The magazine says their source at the German automaker confirms plans for a B-Class electric-only vehicle. While Tesla already provides battery packs for the battery-powered Smart ForTwo, the B-Class EV will reportedly have Tesla batteries, motor and other components. U.S. residents should be able to procure one sometime in 2014.
The same Mercedes source says plans for a hybrid B-Class have been postponed for now. Adding a range-extending, gasoline-powered engine to an electric vehicle would put the car into a different class for which rebates and incentives aren't as favorable in the States.

2014 Mercedes-Benz S-Class interior caught in spy shots

With the redesigned 2014 Mercedes-Benz S-Class getting closer to production, the camera-wielding crew over at Autospies somehow managed to get inside of the car to snap some detailed spy shots. As the prototypes continue to shed camouflage, it would appear that Mercedes-Benz is getting closer to unveiling the car, and with the Geneva and New York auto shows coming up, it could be sooner rather than later.
From what we can see of this car's interior, the overall look of the S-Class' cabin isn't a ground-breaking departure from the current car, but it has been completely redesigned with more advanced technology. The styling is now even more upscale with larger swaths of wood, more shapely door panels (without the built-in armrest cubbies) and the concept-like two-spoke steering wheel. The highlight of this car though is probably the two massive digital screens with one being used for driver information and the other used for navigation, audio and infotainment systems. One other detail we noticed about this car is that it was equipped with the new 360-degree camera that debuted on the new GL-Class and will also be used on the 2014 E-Class. We also know that the next-gen S-Class will be getting the new cloud-based MBrace2 infotainment system.
As for the exterior design, it looks like the next S-Class will carry a similar profile as the current car, but we can see through the camouflage that the new styling will fit in better with current Mercedes-Benz products. Up front, the grille is much larger is flanked by aggressive LED-trimmed headlights, while the rear view of the car shows us the LED brake light now at the top of the rear window, a more pointed trunk opening and a more squared-off rear fascia with exhaust outlets pushed to the corners.