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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.

Maybach and Aston Martin alliance talks fall apart

If you have, like us, been salivating at the notion of a new generation of Maybach and Lagonda ultra-luxury crafts built by Aston Martin, we've got some bad news: According to reports emanating from Germany, talks between AML and Daimler have broken down.
The proposal under negotiation would have seen Daimler outsourcing production of the next family of Maybach models to Aston Martin, which in return would benefit from Mercedes-Benz platforms and engines - not only for its svelte GTs, but also for its own future Lagonda line of limousines and luxury SUVs. That, and a boatload of money - or at least that's what AML was reportedly seeking, an issue that served as the stumbling block over which the deal reportedly collapsed.
That's not to say the two parties couldn't still reach some sort of a compromise, but short of that, Daimler may opt to either shut down Maybach altogether, find another partner, or take another stab at building new models internally.