1967 Mercedes Convertible 250sl Before 280sl Pagoda on 2040-cars

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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.

These cars are headed to the Great Crusher In The Sky

It happens every year. We bid adieu to some cars and trucks that will be missed, and say good riddance to others wondering how they stayed around so long. Whether they're being killed off for slow sales or due to a new product coming along to replace them, the list of vehicles being discontinued after 2012 is surprisingly long and diverse.
CNN Money has compiled a list of departing vehicles, to which we've added a few more of our own. In the slow sales column, cars like the Lexus HS 250h, Mercedes-Benz R-Class and the full Maybach lineup appear, while the Ford Escape Hybrid, Mazda CX-7 and Hyundai Veracruz are all having their gaps filled with more modern and more fuel-efficient alternatives. Obvious exceptions to the rule include models that still sell in decent numbers like the Jeep Liberty and the Chrysler Town & Country (which will eventually be replaced by a crossover-like vehicle).
Check out our gallery of discontinued cars above, then scroll down for more information.

The Mansory Speranza proves that money can buy taste and good sense...

...Just kidding.
No one in their right mind has ever accused German tuners Mansory of being subtle. So, when our Geneva team wandered across the Mansory Speranza - A Mercedes-Benz Gelandewagen that has been denuded of its roof and spackled inside with quilted leather and red carbon fiber ­- they didn't ask a lot of existential questions. Why does the Speranza exist? Because Germans are weird sometimes, that's why.
Forget for a moment that you'll have to pay Mansory hundreds of thousands of euros (we're guessing, no pricing information has been revealed) for the privilege of converting your G-Class into something that looks like a Suzuki Samurai, and prepare to be impressed by the details. The tuning house has increased the output of the Mercedes V8 to a healthy 700 horsepower and 668 pound-feet of torque. The wheels are 24-inches, and wear almost unbelievable 305-section ultra-high performance Vresdestein tires. Carbon fiber can be found nearly everywhere one looks, including making up the housing for the spare tire. Oh, and there are leather pillows for the backseats... no word on whether they're standard or optional, but we're looking in to it.