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Volvo S60 Polestar concept plays in the snow with Mercedes C63 AMG

Chris Harris took to a snowy stretch of tarmac to get a fingertips-on-the-wheel feel of the Volvo S60 Polestar concept. Harris says the turbocharged sedan with 508 horsepower and 424 pound-feet of torque - and a manual transmission - is "a study to see if Volvo can get back into the fast-car market." The Polestar S60 concept, one of which was already purchased for $300,000 by a private buyer, is still making the publicity rounds because even Volvo's Chinese owners realize that, as Harris says, "Volvo sold more cars because it made fast cars" like the old 850 T5 Wagon that stormed the British Touring Car Championship in the 1990s.
For reference, Harris compares the blue wonder to the Mercedes-Benz C63 AMG and its 487 hp and 442 lb-ft. The question is, were Volvo to get the price of a production version of the S60 Polestar to climb way down from its 200,000-pound sticker, could it be worthy competition to the established giants?
You can watch Harris divine the answer via a lot of drifting through the snow and a drag race in the video below.

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 G63 AMG 6x6 is sold out

Sometimes automakers go absolutely bonkers and bequeath a product on the world that makes no logical sense – except to make people grin from ear to ear. The Mercedes-Benz G63 AMG 6X6 is just such a vehicle with six wheels, three axles, five differentials and a 5.5-liter twin-turbocharged V8 making 536 horsepower and 561 pound-feet of torque. The result is a truck that looks more appropriate to handle the dystopian future rather than any paved road on Earth, especially the $1.35 million armored version. Unfortunately, if you have a hankering to own a brand-new example, it's too late because Mercedes is ending production of the behemoth. Since introducing the 6X6 in 2013, Mercedes actually sold more than it originally anticipated by moving more than 100 of them, according to GT Spirit, but the German automaker has ended production to keep the model special. Still, those production numbers aren't too shabby considering the truck's ultra-niche nature and base price of 379,000 euros ($430,000 at current exchange rates). While wealthy clients who desire luxury with their off-roading can no longer order the 6X6, Mercedes isn't entirely abandoning these customers yet. The company is already previewing the G500 4x42 that takes the six-wheeler's pumped up suspension and wheels but reinterprets the look on the more conventional, two-axle body style. Buyers might have to accept a naturally aspirated 5.5-liter V8, though. A debut for the new model is expected for the upcoming Geneva Motor Show in early March. Related Video: