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Mercedes-Benz B-Class Electric Drive gets official US launch

It's finally time to plug in the first production Mercedes-Benz-branded electric vehicle in the US. The Daimler division, which also sells a few of its battery-electric Smart ForTwo vehicles here in the states, has officially launched sales of the Mercedes-Benz B-Class ED. Even better, the US will be the first market in the world to give the general public access to the new plug-in. As with many other EV debuts, the flyover states will have to wait a bit. Mercedes-Benz is only selling the B-Class ED in 10 coastal states, including California, Oregon, New York, New Jersey, Maryland and Maine, and hasn't said anything about when a broader release might happen. Earlier this month, the US Department of Energy rated the B-Class electric with an 87-mile single-charge range, which is comparable to that of the Nissan Leaf and BMW i3. The other shoe dropped, though, when it was revealed that the model has an 84 miles per gallon equivalent rating, which is about 30 percent less then both of those other EVs. The culprit for the model, which puts out 177 horsepower and has a base price of $41,150, is its heavier curb weight. Check out Autoblog's "First Drive" impressions here.

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.

New details emerge on forthcoming Mercedes-Benz SLC

Last we heard, the Mercedes-Benz SLC had been put on indefinite hold, but now Car Magazine is reporting that the Porsche 911-fighting "Baby SLS" coupe could be on sale by 2015. Riding on a modified SLS AMG chassis, the smaller and lighter SLC could be priced in the sub-$100,000 price bracket.
We'd already heard that the new car would feature conventional doors (instead of SLS-like gullwing doors), but this report focuses on some of the possible powertrains Mercedes-Benz is likely to use. At launch, the SLC could offer a pair of V8-powered models - a 485-horsepower SLC and a 585-hp SLC S - both being powered by a 4.0-liter twin-turbo V8. About a year after launch, a new V6 model could emerge giving the SLC an estimated 333 horsepower and its lowest price point.
It also sounds like the car's name hasn't been completely finalized as some people within Mercedes are favoring a return of the SLR name.