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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.

Smart will go electric-only in United States and Canada

By 2018, the Smart car brand will be only known as an electric vehicle manufacturer in the US. According to Automotive News, sales of gasoline-powered Smart cars will cease later this year, and Daimler will develop the product portfolio into a solely electrified one. This coincides with the upcoming launch of the new generation Smart ForTwo electric drive models this summer. Automotive News claims to have obtained a letter from Mercedes-Benz USA CEO Dietmar Exler sent to US dealers. In it, he underlines the decision to go electric-only, saying "developments within the micro-car segment present some challenges for the current Smart product portfolio," and that the change will only affect North American sales. Production of US-destined gasoline-powered Smarts will cease in April, and sales will continue until stock runs out. The current generation has been on sale from 2015, and it hasn't reached the 2014 sales peak of 10.453 units of the previous generation; last year, there were little more than 6.200 Smarts sold in the States. The first electric drive Smarts were unveiled a decade ago, but they became available in the USA five years later, initially via various trial programs, including Car2Go fleets. Related Video:

2016 Mercedes C-Class Coupe offers S-Class style on a budget

This is the new Mercedes-Benz C-Class Coupe and it's the new best-looking vehicle in the small, luxury, sport coupe market. Bold praise, you say? Well, check out the live photos up top and let us know if you still disagree. As previously mentioned, the C-Class Coupe uses the same tactic as its four-door brother, aping the look of the flagship S-Class, but on a smaller, far more affordable scale. That means the same bold but sophisticated front fascia, slim, horizontally oriented taillights, and strong character line as the S-Class Coupe. It's a similar deal in the cabin, where Mercedes stuck with the aluminum and leather-heavy styling of the S-Class. It's a handsome cockpit for sure, complete with a meaty, flat-bottomed steering wheel and prominent display atop the dash. Although like its big brother, those backseats are there more for show than anything else, thanks to that plunging, fastback-like roofline. Expect the engine options on the C-Class Coupe to mirror those on the four-door sedan, with a base 2.0-liter, turbocharged four-cylinder, a twin-turbocharged V6, and eventually, a range-topping, fire-breathing C63 AMG. You can guess which one we're most eager to drive. Rear-wheel drive should be standard, although expect Mercedes' popular 4Matic all-wheel-drive system to be a popular option. Seven-speed automatic transmissions should be the order of the day, while the C63 will get some incarnation of the brand's AMG Speedshift line. As we suggested at the beginning of this story, you should check out our full gallery of photos direct from the floor of the 2015 Frankfurt Motor Show.