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Recharge Wrap-up: new Gigafactory drone video, Mercedes valet

A new, Tesla-approved drone video shows the progress of the Gigafactory. Recently, a video surfaced showing what Elon Musk said was just the "pilot plant," which is only a quarter of the size of the final planned Gigafactory. This new video not only shows the structure, but also the site surrounding it. We see more steel beams waiting to be erected, suggesting that the footprint of the finished building will be even more massive than that of the current standing structure. And if what Musk says is accurate, we've got a lot more to look forward to. Have a look in the video above, and read more at Teslarati. Tesla is paying hackers to find bugs in its website and products. In a posting on Bugcrowd, the electric automaker calls on "security researchers" to find vulnerabilities in the site itself, any domains owned by Tesla, any Tesla apps as well as Tesla hardware owned by the hacker like a Model S or the Powerwall. In exchange for the hackers' service, Tesla is offering rewards ranging from $25 to $1,000 for reported vulnerabilities. Tesla also promises not to sic the law enforcement on hackers who step forward to help, as long as they follow the rules. Read more at Teslarati. Daimler and Bosch are working on automated parking for Mercedes-Benz. In a properly equipped parking garage, the car would find an empty space and park by itself, and return to the driver when called upon. The groups are starting a pilot project for the autonomous valet feature with carsharing service Car2go, where it works the other way around. Customers will be able to call a car to a pick-up zone using a mobile app. When finished, the customer leaves the car in the drop-off zone, and the car takes care of the rest on its own. "Fully automated parking will be ready for mass-production before fully automated driving," says Bosch's Dr. Dirk Hoheisel. "Low driving speeds and the information from the car park infrastructure enable a fast implementation." Read more in the press release from Daimler. Volta has raised $7.5 million in funding to expand its free EV charging network. To offer free charging, Volta's chargers essentially perform double duty as billboards for what Volta calls "companies with a vested interest in the community." "Early Internet pioneers like Google became industry titans by first offering free consumer services online paid for by companies that advertised on their platforms," says Volta CEO Scott Mercer.

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.

Lewis Hamilton wins British GP, slashes Vettel's lead to 1 point

SILVERSTONE, England - Lewis Hamilton won his home British Grand Prix for the fourth year in a row on Sunday, while a penultimate-lap puncture slashed Sebastian Vettel's championship lead to a single point. The Briton's drive from pole to flag on an overcast afternoon was lonely, uneventful and dominant - in complete contrast to his Ferrari rival's afternoon - with Mercedes teammate Valtteri Bottas finishing 14 seconds behind to secure the one-two. "The support has been incredible this weekend. I am so proud I could do this for you all," said Hamilton, who threw himself into the fans for some crowd surfing after the podium celebrations. "The team were faultless this weekend, Valtteri did an incredible job as well, so it's the perfect weekend for us." Far behind in his wake, as Hamilton cruised to a 57th career win and soaked up the applause from an army of flag-waving fans, came sudden drama. Vettel, who had battled on worn tires but looked like securing the final podium position until the blowout, finished seventh after an emergency pit stop with a shower of sparks from the wheel rim. "There was no sign of that happening," said Vettel over the team radio. "There were vibrations but I had it for 20 laps and it didn't get massively worse. The tires didn't look great but they never look great." The German's Finnish teammate Kimi Raikkonen, who had been second before also being hit with a late puncture that sent Bottas and Vettel ahead of him, took third. At the halfway stage of the 20-race season, Vettel has 177 points to Hamilton's 176 with Bottas on 154. Hungary, a circuit where the Briton has won five times before, is next up. Hamilton became only the third driver, after his late compatriot Jim Clark and Frenchman Alain Prost, to win the British Grand Prix five times and the first to take four successive victories at Silverstone. Clark won four in a row in the 1960s, but one was at Aintree and another at Brands Hatch. Red Bull's Max Verstappen finished fourth, ending a run of retirements, with Australian teammate Daniel Ricciardo fifth after fighting through the field. Germany's Nico Hulkenberg was sixth for Renault and Force India pairing Esteban Ocon and Sergio Perez were eighth and ninth with Brazilian Felipe Massa securing the final point for Williams. Jolyon Palmer's miserable run continued, with Britain's only other driver on the grid failing to make the start after his Renault broke down on the formation lap with a brake failure.