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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.

Chris Harris falls in love with Mercedes-AMG GT at Laguna Seca

It's not every day that an automaker goes down a market segment and still comes off as even more ambitious, but that's exactly what Mercedes has done with the new AMG GT. While the SLS was bigger and more expensive, with the new GT, Mercedes has set its sights on one of the most iconic sports cars of all time. That, of course, would be the Porsche 911, and the big question is whether Benz has achieved its target. For the answer, we turn to none other than the Monkey himself – the inimitable Chris Harris, who recently went solo with his own YouTube channel. And for his latest segment, he took the latest German sports car around no less suitable a track than Mazda Raceway Laguna Seca.

2016 Italian Grand Prix race recap

The Italian Grand Prix at Monza is called the Temple of Power. Furthermore, the winning driver in Italy started on pole in 13 of the last 16 years, and only one driver in that time has won the Italian GP from behind the front row of the grid: Rubens Barrichello in 2002 and 2009. By this point in the current Formula 1 season (era?) we know what it means when a track emphasizes both power and pole position: Mercedes-AMG Petronas. The Silver Arrows locked out the front row with Lewis Hamilton on pole. A poor start prevented the Briton from capitalizing on the advantage, so teammate Nico Rosberg and four other drivers swept by him before the end of the second turn. Mercedes would later say a clutch issue caused Hamilton's botched start, but that didn't help the man who'd just fallen to sixth place. Rosberg got about two laps of television coverage on his way to an unbothered victory ahead of Hamilton. Ferrari made Hamilton's second-place finish easier by sticking to a two-stop strategy; both Mercedes drivers pitted once. We aren't sure why Ferrari didn't at least attempt a one-stopper once Sebastian Vettel and Kimi Raikkonen had been gifted second and third on track. A pit stop took about 23 seconds from entry to exit and Vettel finished third, six seconds behind Hamilton. Raikkonen finished fourth, another seven seconds behind Vettel. Perhaps the Scuderia's tire usage wouldn't allow longer stints, but we'll never know. Daniel Ricciardo wielded his Red Bull like a scalpel to make an impeccable pass on Valtteri Bottas in the Williams and take fifth place. Ricciardo, trailing another Italian province behind, somehow closed the gap on Bottas in just the braking zone of Turn 1, pulling alongside near the apex without locking a wheel on entry nor running wide on exit. Bottas claimed sixth ahead of Red Bull's Max Verstappen, Sergio Perez in the Force India, Felipe Massa in the second Williams, and Nico Hulkenberg in the second Force India sealing the top ten. Monza did spring a few on-track surprises. Esteban Gutierrez drove Haas F1 into Q3 for the first time this season, the Mexican setting the sixth-best time in Q2. Manor Racing planned for Monza all season, Pascal Wehrlein repaying the effort by qualifying 13th. Fernando Alonso pitted his McLaren on Lap 50 of the 53-lap race for a set of super soft Pirellis, then set the fastest lap. It's Honda's first fastest lap since 1992. The biggest moments happened off the track.