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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 goes boating again with G63 AMG-inspired Cigarette

Cigarette Racing has another Mercedes-Benz AMG-themed boat headed out to sea. After The SLS AMG-inspired 46-foot Rough Rider in 2010 and the C63 AMG Black Series-inspired 50-foot Marauder in 2012, this year's Miami Boat Show will introduce the 42-foot Huntress, theme provided by the G63 AMG.
The latest Cigarette homage is less overly racy than the ones before, befitting a watercraft modeled off a performance SUV, but don't let the looks fool: there are five Mercury Racing Verado 350SCi outboard engines, each one of them packing a supercharged inline six-cylinder with, natch, 350 horsepower. Those 1,750 horses will be good for 78 miles per hour when you've got some saltwater underneath you.
If you're in South Florida this week, Booth B-23 at the Miami Convention Center could be your best place to see it. Otherwise, like the 536-hp G63 AMG, it could be hard to catch. There's a press release with more information below.

2014 Mercedes S-Class priced lower from $92,900*

The massively overhauled 2014 Mercedes-Benz S-Class will start at $92,900, not including a $925 destination fee, when it arrives at US dealers in October. That's a 2.8-percent drop over the 2013 S-Class, although Mercedes is fast to point out that a drop in price doesn't equate with a drop in equipment for the executive sedan.
Besides an extra 20 horsepower from the 4.6-liter, biturbocharged V8, the S550 sports a standard panoramic sunroof, keyless start, a rear-view camera and LED headlights, taillights and interior lights. Adding the German manufacturer's 4Matic all-wheel-drive system bumps the S550's price up to $95,900.
If the S550 doesn't quite cut the mustard, you can wait until November, at which point Mercedes will quite happily sell you the new S63 AMG 4Matic for $139,500. Power is also up on the S63, from a max of 563 ponies with an AMG Performance Package to 577 horsepower as standard on the 2014 model.