2017 Mercedes-benz G-class G 550 on 2040-cars

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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.

Porsche Taycan is here, Lamborghini Sian is near | Autoblog Podcast #594

In this week's Autoblog Podcast, Editor-in-Chief Greg Migliore is joined by Senior Editor Alex Kierstein and Senior Editor, Green, John Beltz Snyder. They start the conversation with the cars they've been driving, including the Subaru Forester, Lincoln Navigator, Mercedes-AMG C 43 and Subaru Crosstrek Hybrid. Then they talk about the biggest news of the week: the reveal of the all-electric Porsche Taycan. After that, they sweep up other news, like the Lamborghini Sian, new Nissan Juke and the Aston Martin Vanquish 25 by Ian Callum. Next, Autoblog's Erik Meier, who both produces this very podcast and also hosts our Twitch livestream, joins the chat with his impressions of the latest racing game, "WRC 8." Finally, our editors try to provide some helpful guidance in the "Spend My Money" segment. Autoblog Podcast #594 Get The Podcast iTunes – Subscribe to the Autoblog Podcast in iTunes RSS – Add the Autoblog Podcast feed to your RSS aggregator MP3 – Download the MP3 directly Rundown Cars we're driving 2019 Subaru Forester 2019 Lincoln Navigator 2019 Mercedes-AMG C 43 Coupe 2019 Subaru Crosstrek Hybrid Porsche unveils 2020 Taycan Turbo and Turbo S 2020 Lamborghini Sian Next-generation Nissan Juke Aston Martin Vanquish 25 by Ian Callum Autoblog plays "WRC 8" Spend My Money Feedback Email – Podcast@Autoblog.com Review the show on iTunes Related Video:     Green Podcasts Toys/Games Aston Martin Lamborghini Lincoln Mercedes-Benz Nissan Porsche Subaru Used Car Buying Coupe Crossover SUV Electric Hybrid Performance

2015 MV Agusta F4 RC superbike debuts with AMG livery

MV Agusta, the Italian motorcycle maker with 37 Constructors Championship trophies earned in Grand Prix racing, returned to the World Superbike Championship for the 2014 season. With one annual campaign under its belt, it has released the customer version of its racing superbike, the F4 RR. The street-legal version will come in two power levels depending on the exhaust: either 205.5 horsepower with the standard exhaust, or 212 hp with the 4-2-1-2 Termignoni race exhaust. At 386 pounds dry, the RC is about 33 pounds lighter than the World Superbike entrant, but it's still heavier than the competition from Aprilia, BMW, and Ducati. It is, though, a little more powerful than all of them in its full-fat guise. Compared to the RR, MV Agusta made changes to the RC that include a new cylinder head, crankshaft, and camshaft, larger fuel injectors and lighter pistons, a lithium-ion battery, and magnesium casings. Titanium connecting bolts affix a carbon fiber fairing done up in the AMG livery of the World Superbike ride. If you want one, act quickly and come strong: only 250 will be produced, at $46,000 a pop. If you're not that keen, there's a high-res gallery above. Featured Gallery 2015 MV Agusta F4 RC View 26 Photos News Source: Asphalt and Rubber Mercedes-Benz Motorcycle Luxury Special and Limited Editions Performance world superbike mv agusta f4