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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.

Sunday Drive: Classic American nameplates and one exciting new German

Our look back at last week's biggest automotive stories focuses first on the Jeep Wagoneer, an unequivocal American classic. Not only did the Wagoneer play a pivotal role in kicking off America's current love affair with the sport utility vehicle, it legitimized the Jeep brand in the mind of consumers looking not just for something to ably take them off the beaten path, but to do so in comfort, with the entire family along for the ride. So it comes as little surprise that Jeep decided to take one vintage Wagoneer, modernize it with a 5.7-liter Hemi V8 engine, and put the thing on display as part of its annual Moab Easter Jeep Safari. We're in love. Our next two stories focus on Cadillac. First up is news that the striking Escala Concept is headed for production in 2021 to serve as the brand's flagship luxury sedan. The second story involves Caddy's current top rung, the CT6, which gets a new twin-turbo V8 engine as part of its V-Sport package. And finally, we round out this look at last week's headlines with the 2019 Mercedes-Benz C-Class Coupe and Cabriolet. We're mighty keen to try out Benz's new AMG-fettered turbocharged inline-six engine, and the C Coupe looks like a fine point of entry. As always stay tuned to Autoblog this week for all the latest automotive news. Jeep delivers basketful of concepts for the Moab Easter Jeep Safari Cadillac's striking Escala concept is reportedly headed for production Cadillac CT6 V-Sport wants to take prisoners with 550-hp 4.2L TT V8 2019 Mercedes-Benz C-Class Coupe and Cabriolet revealed ahead of New York

Recharge Wrap-up: Smart Silvretta E-Car Rally, Uber's autonomous Teslas

Daimler took part in the 2015 Silvretta E-Car Rally with seven electrified cars from Mercedes-Benz and Smart. It is the automakers' sixth year competing in the competition in the mountains of Austria's Montafon region. Mercedes fielded two B-Class Electric Drives, an SLS AMG Electric Drive, C350e, S500e and GLE500e 4Matic alongside a Smart Brabus Fortwo Electric Drive Cabriolet. The Silvretta Rally sees some 150 vintage cars and 30 electric vehicles take part in the event, which took place from July 2 through 5 this year. Read more in the press release from Daimler below. Uber CEO Travis Kalanick says that he'd want to buy all of Tesla's autonomous vehicles if they were available in 2020. Venture capitalist Steve Jurvetson relayed Kalanick's comments from the Top 10 Tech Trends dinner in June. Jurvetson also praises self-driving cars, saying, "I believe they are already safer than my parents, and I would trust my kids with them. And they're just going to get better." Jurvetson also believes that taxi services will prosper from the use of autonomous cars in the future. Read more at Hybrid Cars. A Michigan legislator has introduced a bill that would count burning industrial solids — such as tires and plastics — toward the state's renewable energy mandate. Aric Nesbitt's bill would "remove unnecessary burdens on the appropriate use of solid waste as a clean energy source" in order to meet the state's requirement that 10 percent of energy come from renewable sources. Critics argue that these materials are not truly renewable, and that burning them causes pollution and emits greenhouse gases. The proposed bill would also repeal a law requiring utilities to work toward reducing energy use by one percent per year. Read more at Treehugger. Will the cars National Electric Vehicle Sweden (NEVS) builds in China bear the Saab name? While NEVS is the newest parent company to Saab after being acquired in bankruptcy from Spyker, there's no confirmation that the electric vehicles it builds at its Tianjin plant will be sold as Saabs. Swedish defense firm Saab AB, which held the rights to the Saab name, withheld permission to use it after NEVS declared bankruptcy last year. "The exact models and brands are not finalized yet," says a NEVS spokesman. The company says it is spending $200 million to build the new factory in China, with an expected annual capacity of 200,000 vehicles. Read more at Automotive News Europe.