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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-AMG GT3 photos hit the web

Yesterday, the first shot of the next-generation Audi R8 hit the web hours before its official debut. Today, it appears the same thing is happening with photos of the Mercedes-AMG GT3, thanks to French website Le Point. Surprisingly for a vehicle designed as a single-minded track machine, Mercedes is injecting some serious style into the GT3. The rounded, vertical slats in the grille evoke the look of the original 300SL racer. In profile, the styling of the roadgoing AMG GT is retained but with the addition of a circuit-hugging body kit and huge wing at the rear to keep in planted. The interior is similarly purposeful. Along with these leaked photos, Le Point claims that the GT3 ditches the standard GT's twin-turbo 4.0-liter V8 in favor of a naturally aspirated 6.3-liter V8 sourced from the SLS AMG GT3. The aluminum platform underneath is also taken from the regular GT, but practically every exterior panel is reportedly replaced with carbon fiber to cut weight. The racer also keeps the double-wishbone suspension at all four wheels. While these specs are still unconfirmed, Mercedes definitely has a beautiful track machine on the way with the GT3. We look forward to seeing it in person in Geneva.

Lewis Hamilton has Vettel in crosshairs at Canadian Grand Prix

MONTREAL - The Canadian Grand Prix has been a happy hunting ground for Lewis Hamilton, and he will look to bag a sixth career win on the island circuit on Sunday to refuel his hopes of another Formula One drivers title. With 14 races remaining on the calendar, it is far from do-or-die for Hamilton, but the pressure is mounting on the Briton and Mercedes with arch rival Sebastian Vettel and Ferrari threatening to widen the gap at the top of the championship standings. Only Michael Schumacher has won the Canadian Grand Prix more times (seven), and Hamilton intends to close the gap further in Montreal as the race marks its 50th anniversary. Hamilton needs to do so, at the scene of his first ever Formula One victory a decade ago, to reel in Vettel after the German led a Ferrari one-two in Monaco and powered 25 points clear. "Montreal has been a great hunting ground for me in the past, and I plan for it to continue," the triple world champion told reporters. With five wins and five poles from previous visits to Quebec, Hamilton would normally be the favorite, but champions Mercedes are no longer the dominant team. "The Ferrari seems to work everywhere. The next 14 races are going to be very, very difficult," he said after struggling to seventh place in Monaco. "They have had arguably the strongest car all year. They look like our car which just worked everywhere last year." The race will also mark the return of twice world champion Fernando Alonso to the Formula One grid after the Spaniard skipped the Monaco Grand Prix last month to chase IndyCar glory at Indianapolis 500. Alonso turned in an impressive performance at the famed Brickyard, qualifying fifth fastest and running at the front but late in the race suffered a familiar fate with his Honda engine giving up. Little has changed at struggling McLaren during Alonso's brief sabbatical with the team still hampered by an uncompetitive Honda engine. There is plenty of reason to party around the Circuit Gilles Villeneuve this week with the city celebrating its 375th anniversary, Canada its 150th birthday and the Canadian Grand Prix its 50th. Williams driver Lance Stroll will be hoping to contribute to the party atmosphere. For the first time since the days of 1997 world champion Jacques Villeneuve, the Canadian Grand Prix will have some true home interest with teenager Stroll on the starting grid for Williams.