2008 Mercedes S63 Amg 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.

Mercedes-Benz releases US-spec 2014 Sprinter details

Last week, Mercedes-Benz released the details for the updated 2013 Sprinter intended for global markets, but this week it has announced what changes are being made to the US-spec version of the van for the 2014 model year, including the Freightliner model. As expected, most of the changes made to the European model will be present on the 2014 Mercedes-Benz Sprinter when it goes on sale in the US, which is expected to be this fall.
The biggest difference between the Sprinter announced last week and the one headed to our shores is what is found under the hood. While European Sprinters will come with diesel engines and offer the availability of a supercharged four-cylinder gasoline or CNG engine, US Sprinters will still offer the 3.0-liter V6 BlueTEC diesel. This year's Sprinter now comes standard with a new base engine, the 2.1-liter four-cylinder BlueTEC diesel. This smaller engine will produce 161 horsepower and 265 pound-feet of torque, and will be paired to a seven-speed automatic transmission; the optional 3.0 V6 puts out 188 hp and 325 lb-ft of torque, and will be mated to a six-speed auto.
Fuel economy for the new Sprinter has not been announced, but Mercedes-Benz has made numerous changes with the goal of improving efficiency. To this end you'll find a new, low-friction rear axle and the optimization for the generator, fuel pump and power steering pump.

How could a lifted Mercedes-Benz G63 AMG be more awesome? Add an axle

We are fully confident in saying that this will be the most amazing thing you see all day. First of all, it's a Mercedes-Benz G-Wagen - in AMG spec, no less. And it's being shown off in high-definition video glory, blasting through the desert, jumping over sand dunes, and generally being awesome. But here's the kicker: It has six wheels. Three axles. And they're all driven. Holy $%!#.
Under the hood is AMG's usual 5.5-liter twin-turbocharged V8, and total output is rated at 536 horsepower and 560 pound-feet of torque. That's impressive and all, but do keep in mind that the G63 6x6 weighs in at 8,322 pounds or, you know, the weight of two E-Class sedans. Combine that with its 18 inches of ground clearance, 37-inch tires and five locking differentials and you've got a vehicle capable of, well, everything you've ever imagined or will ever imagine for the rest of your life.
But the goodness doesn't stop once you open the doors. Oh, no. This thing is fit for a king - or a sheik, more appropriately - with ultimately luxurious seating for four. The rear bench seat has been removed in favor of two bucket seats with a fixed console in the middle, and the rear seats have been moved back beyond the usual B pillar to allow for more legroom.