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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.

2013 Mercedes-Benz SLS AMG GT Coupe

Mercedes-Benz upgraded its SLS flagship Coupe and Roadster for the 2013 model year, and the changes are marked with them new "GT" nomenclature. Both SLS models arrive with a retuned naturally aspired 6.2-liter V8 delivering 583 horsepower and 479 pound-feet of torque (the horses are up from 563, but the torque remains the same) mated to a revised seven-speed AMG Speedshift dual-clutch gearbox. Rounding out the mechanical upgrades is a redeveloped AMG two-mode adaptive suspension. Physically, the revised models are differentiated by their new "GT" badging, darkened headlight/taillight buckets, red brake calipers, unique wheel colors and high gloss finish on the front grille, exterior mirrors and hood/fender fins. Inside the cabin are new red seatbelts, Alcantara upholstery and contrasting red stitching.
As it is nearly impossible to experience the aluminum gullwing beast on public roads, Mercedes invited out to Southern California's Willow Springs to wring out the 2013 SLS GT Coupe on a racing circuit.

Brabus rockets the Mercedes S65 to 900 horsepower

Some people you just can't please. They take a look at a vehicle with 621 horsepower and 738 pound-feet of torque on tap – one of the most powerful cars money can buy – and say that's still not enough. Fortunately there are companies like Brabus that cater to just such individuals. The Mercedes tuner extraordinaire brought the Rocket 900 to the Geneva Motor Show this year. It's based on the S65 AMG – yeah, the one with the twin-turbo V12 – but takes it a step or ten further. For starters, Brabus has bored the engine out to 6.3 liters and hooked up new turbochargers, exhaust, intake and more – cranking output up to 887 hp and a mind-bending 1,106 lb-ft of torque. Of course it didn't stop there, revising everything from the limited slip differential and air suspension to aero kit and interior. The result? Try 0-62 in 3.7 seconds, a 217-mile-per-hour top speed and a price tag approaching $400,000. Related Video: Featured Gallery Brabus Rocket 900: Geneva 2015 View 16 Photos Related Gallery Mercedes-Benz S65 AMG Brabus Rocket 900 View 30 Photos Related Gallery 2015 Geneva Motor Show Videos View 25 Photos Image Credit: Live photos copyright 2015 Drew Phillips / AOL Aftermarket Geneva Motor Show Mercedes-Benz Luxury Performance Sedan 2015 Geneva Motor Show Brabus mercedes s65 amg brabus rocket 900