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Mercedes-Petronas AMG W04 launched to little fanfare, lots of pressure [w/video]

No indoor cocktail hour for the launch of the W04, the newest chassis built by the Mercedes AMG Petronas Formula One team. Instead, Nico Rosberg and Lewis Hamilton spent a morning in photo and video sessions at the track in Jerez, Spain then paused a moment to introduce the car. The team will want the W04 to demonstrate the World Championship credentials of the team personnel and one of the team drivers, instead of the mostly humble performances we've seen over the past three years.
The W04 has been fitted with a new five-element front wing, pushrod front and pull-rod rear suspension, a second-generation Coanda exhaust and an "aggressively packaged" rear end. A small vanity panel, à la Infiniti Red Bull's RB9, covers the stepped nose.
Team principal Ross Brawn has called it "a clear step forward in design and detail sophistication," but as much as we truly respect Brawn's abilities and achievements, we heard him say similar things about the updated W03 last year before almost every race weekend from about mid-season. We really hope he's right this time, and so does the team's newest driver, Lewis Hamilton. We'll do our best to ignore the parallels of the Mercedes F1 team having signed a sponsorship deal with Blackberry, another company trying to find its way back to the top and still struggling, and just point you to the video below of the W04 in action.

Brabus 800 Roadster is a power-mad aristocrat

If we're being completely honest, we haven't exactly been in love with the aesthetics of the sixth-generation Mercedes-Benz SL-Class. It's mostly a front-end issue, with its glowering eagle-eye headlamps and upright, dinner-plate-sized Three-Pointed Star coming across to us as overwrought. That's particularly troublesome for a roadster whose history has of the most elegant designs of all time in its back catalog. Somehow, the new R231 generation's brash visuals seem more at home on this Brabus 800 Roadster to us.
That's probably because the high-dollar German tuner has turned up the wick on the SL's visuals even further, with carbon fiber bodywork, a more aggressive aero kit, matte hood scoop and complex two-finish wheels. It's all-the-way committed to its brashness, in other words - and justifiably so. Anything with 800 horsepower and 1,047 pound-feet of torque has earned the right to look however it wants, right?
Brabus started with the SL65 and its not-exactly-underpowered 6.0-liter twin-turbo V12, and went to town, fitting their own turbocharger and intercooler system, along with a less-restrictive exhaust system with driver-selectable sound levels and new engine electronics. The result is a 3.7-second 0-62 mph time, an electronically limited top whack of 217 mph... and one seriously compromised toupée.

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.