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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-Benz S-Class spied once again

As evidenced by how little camouflage the next-generation Mercedes-Benz S-Class has been caught wearing lately, it can't be too much longer until the car will get its official debut. In our newest shots of the yacht-sized luxo sedan, the cladding still covers up the headlights, front fascia and most of the rear end, but we finally have an almost undisguised look at the rest of the car's lines.
Considering previous spy shots had more camo that better (or fully) concealed the S-Class' body, some of the more obvious things we see in these images include the prominent grille, the CLS-Class-inspired bodyside creases, the pointed trunk opening and, most interestingly, a lack of fancy exhaust outlets. Unlike other S-Class prototypes we've seen, this car does not have integrated outlets, but it does have two pipes on the left side of the car. All current S-Class models in the US and Europe feature a dual exhaust layout on each side of the car, so while some of our questions about the car get answered, it would appear that more are just arising.

Did BMW really win the luxury car sales race?

As anyone who follows our monthly By The Numbers series already knows, the luxury car sales race in the United States was close all of last year as BMW, Lexus and Mercedes-Benz seesawed up and down for sales supremacy. At the end of the year, it was BMW on top of the standings with 346,023 total sales. Or was it? According to data released by Polk, comparing the actual number of vehicles registered between the three top luxury players in the US paints a slightly different picture. Polk's data suggests that only 335,259 BMWs were registered in 2015, compared to 340,392 Lexus models. Why the disparity? It's all a matter of timing. Actual end consumers buy new cars, in almost all cases, from a franchised dealer. BMW delivered 346,023 vehicles in 2015, but only 335,259 of them were registered by their new owners. Presumably, those 11,000 BMWs did (or will) end up registered in the driveways of consumers, but they hadn't before January 1, 2016. Lexus General Manager Jeff Bracken wrote in an email to Automotive News, "Luxury sales leadership as measured by vehicle registrations is important to Lexus as it represents actual consumers engaging directly with our dealers." Of course, it goes without saying that we'll be paying keen attention to the 2016 luxury car sales race as it unfolds. If it's anything like it was in 2015, it'll come down to the wire, and even then may not be entirely clear. Related Video: News Source: Automotive News - sub. req.Image Credit: Andrew Harrer/Bloomberg via Getty BMW Lexus Mercedes-Benz Car Buying Car Dealers Luxury luxury cars