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Mercedes-Benz killing Maybach in 2013, replacing with S600 Pullman

According to an unnamed Mercedes-Benz source speaking with AutoWeek, the German automaker is killing off its Maybach line in 2013.
The unsurprising news comes after the brand was resurrected in 2002, but failed to meet sales expectations with its two core models, the Maybach 57 and 62. Further solidifying its fate, a deal with Aston Martin to aid in the development of future Maybachs fell through earlier this year.
According to the AutoWeek insider, the plan is to continue to sell both Maybach models through the end of 2013, after which the fifth-generation S-Class will go on sale. When that happens, three new variants of the S-Class will be available, including an all-new, range-topping S600 that brings back the Pullman moniker and may be better suited to competing with the likes of Bentley and Rolls-Royce.

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-AMG planning hybrid hypercar?

It used to be that, a few overlapping two-door models aside, Mercedes-Benz and Porsche didn't really compete with one another. That's how the two ended up collaborating on projects like the Mercedes 500 E that put it on the performance sedan map without fear of stepping on each other's toes. But Porsche has grown considerably since then, challenging its Stuttgart neighbor with four-door sedans and crossovers, as well as sports coupes and convertibles. Little wonder, then, that Mercedes has hit back at Porsche with the AMG GT, and there will be many more versions to follow in 911 style. But that may not be the final salvo the Silver Star marque launches at Zuffenhausen. According to the latest bit of speculation and deduction from our friends at Motor Trend, Mercedes-AMG may be planning a hybrid hypercar of its own to take on the Porsche 918 Spyder – not to mention the McLaren P1 and LaFerrari. Solid information is sparse at this point, but after speaking to AMG chief Tobias Moers, MT speculates that the new flagship will likely be mid-engined, with a boosted version of the company's 4.0-liter twin-turbo V8 kicking out between 650 and 700 horsepower, working with a pair of electric motors at the front to deliver tenacious through-the-road all-wheel traction and a combined output in the thousand-horsepower range. There is the possibility, though, that Mercedes could go after the latest hybrid hypercars with a flagship version of its just-launched AMG GT, packing a similar powertrain setup as the ultimate evolution of the breed. Other GT versions will likely soon include a GT3 racing model, a Black Series version and a roadster – following a similar path taken not only by the 911, but also by Benz's previous halo supercars like the SLR McLaren and SLS AMG.