2004 Mercedes-benz Cl55 Amg White/grey **rare** on 2040-cars

Auto blog

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.

Why all of this year's F1 noses are so ugly [w/video]

If you're a serious fan of Formula One, you already know all about The Great Nosecone Conundrum of 2014. Those given to parsing each year's F1 regulations predicted the strong possibility of the so-called "anteater" noses as far back as early December 2013. Highly suggestive visual evidence first came after Caterham's crash test in early January, with further proof coming as soon as Williams showed a rendering of the FW36 challenger for this year's championship. That car earned a name that wasn't nearly so kind as "anteater."
Casual followers of the sport - or anyone who gets the feed from this site - probably don't know what's happening, except to wonder why the current year's F1 cars are led by appendages that would make Cyrano de Bergerac feel a whole lot better about himself.
The short answer to the question of ugsome F1 noses is "FIA regulations and safety." The reason there are various kinds of ugsome noses is simpler: engineers. The same boffins who have given us advances including carbon fiber monocoques, six-wheeled cars, double diffusers and Drag Reduction Systems are bred to do everything in their power to exploit every possible freedom in the regulations to make the cars they're building go faster - the caveat being that those advances have to work within the overall philosophy of the whole car.

2013 Mercedes-Benz SL65 AMG

Make way for the 2013 Mercedes-Benz SL65 AMG, the most wonderfully preposterous car I have ever driven.
There is absolutely no reason why any two-seat roadster should be fitted with a twin-turbocharged 6.0-liter V12 developing 621 horsepower and 738 pound-feet of torque, but I sure am glad that Mercedes-Benz doesn't see things that way.
Drop into the leather-lined cockpit of this $213,145 provocateur, floor the accelerator pedal as I did over and over again, and 60 miles per hour falls in a traction-limited 3.9 seconds. Top speed has been electronically held to 186 mph (this apparently saves Gulfstream jet owners from embarrassment). Forget the SL550 and SL63 AMG, the valets will trip over themselves attending to the tycoon driving this thoroughbred - it's the real deal.