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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.

2015 Mercedes-Benz S63 AMG Coupe

Conventional wisdom would dictate that adding more power and several key performance enhancements to an already very good car, like the 2015 Mercedes-Benz S550 Coupe, will end up equaling an even better car. In the case of the 2015 Mercedes-Benz S63 AMG Coupe, conventional wisdom sort of applies, but perhaps not as much as we'd have initially guessed. We'll get into the nitty gritty details in just a moment, but here's the most immediate takeaway we had in our minds as we walked away from this super coupe: The S63 AMG is excellent, but so is the slightly more mundane S550 Coupe on which it is based, and which is priced some $41,000 less expensive than its more powerful sibling. Chew on those figures while we examine what differentiates the two S-Class Coupes. Drive Notes As expected, the single greatest highlight of the 2015 S63 Coupe is its engine. As a powerplant, it's a gem. As a hand-built engineering exercise, its 577 horsepower and 664 pound-feet of torque are just as impressive in real life as they sound when recited from stat sheets. Not that the old CL63 AMG was lacking in power, but the new S63 AMG Coupe boasts 41 more horses and 74 more lb-ft than the outgoing engine. The run to 60 miles per hour takes a scant 3.9 seconds, according to M-B, aided in no small part by the car's 4Matic all-wheel-drive system and other assorted electronic brains deciding where, exactly, all those ponies should be sent. The rear-biased system is tuned to send two-thirds of the engine's power to the rear wheels in a bid to make the car feel more like what performance-minded drivers expect. Top speed is electronically limited to 186 miles per hour, which is plenty fast enough, even in the days of 200-plus-mph sedans from M-B's former corporate cousin Dodge. We didn't get anywhere near the car's maximum velocity, but our brief trips into triple-digit territory were quiet, comfortable and completely free of drama. The seven-speed automatic gearbox responds quickly to requests of your right foot, but the steering wheel-mounted paddles don't change gears as quickly as we'd like when in Manual mode. Controlled Efficiency (which we'd call Comfort) maximizes efficiency, keeping the transmission in higher gears and shifting earlier than when in Sport mode, and we didn't find much fault with the computer's shifting algorithms in either setting.

2016 Mercedes-Maybach S600 offers the plutocratic life for $189,350*

Mercedes-Benz has officially announced pricing on its ultra-luxurious Maybach S600, and just as we feared, you'll probably need to be a Saudi oil sheikh to afford one. Prices start at $189,350, excluding a paltry $925 destination charge. That princely sum does not, however, make the Maybach version of the latest S-Class the company's most expensive sedan. That honor still goes to the ridiculously powerful and absurdly priced S65 AMG, which starts at $222,000. The new model's price easily surpasses that of the vehicle it's based on, though. Mercedes old flagship sedan, the S600, starts at $166,900. Of course, you do get quite a lot of kit for spending an extra $23,000, besides the C-pillar-mounted Maybach badges and the extra 7.9 inches of wheelbase. Upgrades include a re-engineered interior that should be quieter than even the tomb-silent standard S-Class. Even the seats, which are lined in extremely supple leather, are noise insulated. Speaking of those seats and leather, the Maybach trim should include a fairly extensive range of different woods and leathers, for that personal touch. Beyond that, Maybach-exclusive features include a new fragrance for Mercedes' silly Air-Balance system, as well as a pair of silver-plated champagne flutes. What are your thoughts? Does the Maybach S600's extravagant price tag seem worth it (we're leaning towards yes)? Have your say in Comments. Mercedes-Benz Announces Pricing On All-New 2016MY Mercedes-Maybach S600 Segment-Leading Flagship to Start at $189,350* January 16, 2015 - MONTVALE, NJ The S-Class range has a long established tradition of setting the benchmark in the luxury segment, and the launch of the highly-anticipated new Mercedes-Maybach S600 in April will further assert its leadership position in the U.S. market. Priced from USD $189,350, this exceptional addition to the product lineup offers more than 8 inches in total length when compared to the standard S-Class and features a suite of intelligent safety technologies and exclusive appointments that complete the opulent package. The Mercedes-Maybach S-Class seamlessly melds the perfection of the Mercedes-Benz S-Class with the incredible heritage and prestige of the Maybach nameplate. Mercedes-Maybach is not an equipment line. It is a sub-brand that introduces Mercedes-Benz vehicles in an even more exclusive form.