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Mercedes previews GLC crossover coupe concept for Shanghai

Say what you will about slant-backed crossover coupes: if the industry has learned anything from BMW and its X6, it's that they're popular... and profitable. Little wonder, then, that Mercedes followed suit with the release of the GLE Coupe. And now it appears set to follow the lead set by the BMW X4 as well with a smaller GLC Coupe... at least, that is, in concept form. Previewed in this latest teaser rendering is the Concept GLC Coupe, a design study which Mercedes is set to present at the Shanghai Motor Show later this month. The statement that accompanies it (which you can read below) doesn't tell us much, except to say that it is "near-production-standard" – which is to say that it stands a strong chance of reaching showrooms. As it is, the GLC with a conventional roofline is set to take the place of the GLK in Benz's expanding crossover lineup. The emergence of this concept ought to preview that new model's styling, regardless of how steeply its roofline tapers off towards the back. The Shanghai show is, incidentally, the same venue Mercedes originally floated the idea of its smallest crossover with the presentation of the Concept GLA two years ago. And as we all know, that subsequently entered production – in a form closely following that of the concept. So we wouldn't be surprised to see a GLC Coupe emerge in close proximity to its more conventional counterpart (maybe even before), heavily influenced by the show car we'll see later this month. Related Video:

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.