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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-AMG Hulks out again with new G63 test

The last time we saw Mercedes-Benz testing its camouflaged, lime-green G63 AMG, it was on the sunny roads of Germany. Perhaps recognizing that this was a tragic waste of its talents, Mercedes has now moved testing of its new brute to the windy, snowy tarmac of Sweden. Besides being a far more suitable environment for its monstrous G-Wagen, Mercedes' arrival in Scandinavia gives us yet another look at its 6x6-inspired updates. Judging by the license plates, this is the exact same vehicle we spotted way back in November, which gave us our original look at the impending arrival of the G's hoisted-up ride height, more aggressively flared fenders and meatier off-road-ready tires. As with our previous report, our spies are still arguing that the next G63 will be fitted with Mercedes' 5.5-liter, twin-turbocharged V8. That means as much as 544 horsepower and 560 pound-feet of torque will be on tap, and it'll all be dispatched via a seven-speed automatic transmission. The next G-Wagen is still on pace for a debut this year, although we still aren't sure where. Forced to put money on it, we'd bet on a European show, likely March's Genevan extravaganza or September's Frankfurt show.

Mercedes' Tesla fighter will have 311-mile range

Mercedes-Benz is preparing to take the fight to Tesla, and it'll do it using an EV with up to a 311-mile range, the company's research-and-design boss told German publication Auto Motor und Sport (Google Translate warning). Perhaps more impressive than just the range, though, will be the modular nature of the EV platform, which will allow Stuttgart to easily adapt it to multiple vehicles. "We are working on an intelligent concept for a highly attractive electric vehicle with a range of [228-311 miles]," Mercedes' Thomas Weber said in the interview with Auto Motor und Sport. Weber added that this vehicle is coming "soon," although that word can have multiple meanings in this industry. Mercedes is taking Tesla and the all-electric vehicle increasingly seriously, as Automotive News reports. But while it continues to invest heavily in EVs and hydrogen fuel cells – roughly half of Daimler's $6.4 billion research-and-design budget went into research on low-emissions tech last year – the company is most heavily committed to plug-in hybrids. As previously announced, Stuttgart will field ten new PHVs by 2017, including electrified variants of the C- and S-Class.