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Sunday Drive: And now for something completely different

This past week played host to a wide assortment of automotive news, highlighted by our first drive of the 2018 Volvo XC40. The Swedish crossover is targeted at young, successful Millennials, but it offers cool styling, fun dynamics, and all of today's must-have technology, so we think it ought to appeal to a much wider swath of the automotive marketplace. From there we answer the question, "What are hard on the outside and soft on the inside?" as we take a look at the next Mercedes-Benz G-Class SUV. We expect the German automaker's flagship luxury SUV to remain boxy on the outside, but the interior is going to be soft, supple, and luxurious. And then there's the Honda Clarity Plug-in Hybrid, which starts at starts at $34,290 and boasts 212 total system horsepower, 232 pound-feet of torque, 47 miles of electric driving range, and a total range of 340 miles. EPA rates it at 110 MPGe in EV mode, and 44 city/40 highway/42 combined overall. We compare it to other plug-ins like the Chevy Volt and Toyota Prius Prime. And finally we have some more spy photos of the 2019 Ram 1500. It doesn't have a traditional crosshair grille, but it's got plenty of chrome and an attractive upright stance that's sure to tempt future truck buyers looking for some sophistication to go with their work gloves. As always, stay tuned to Autoblog this week to see all the automotive news that's fit to print. 2018 Volvo XC40 First Drive Review | The Masspirational crossover Mercedes-Benz G-Class gets the luxe, high-tech treatment 2018 Honda Clarity Plug-In Hybrid Review | It's what's on the inside that counts 2019 Ram 1500 shows chrome grille and more production parts Green Honda Mercedes-Benz RAM Volvo Technology Truck Crossover SUV Luxury Performance Sedan volvo xc40 sunday drive

Aston Martin's deal with Mercedes-AMG more than skin-deep

Aston Martin is working on a raft of new models. But it's not going it alone: it has a technical partnership with Mercedes-AMG, the details of which have only been revealed in bits and pieces. If these latest spy shots are anything to go by, however, the arrangement could run deeper than anyone initially let on. Spied undergoing testing at the Nurburgring, this prototype for the upcoming successor to the Aston Martin DB9 is widely expected to be called the DB11 (10 is being used by James Bond's new ride). From the outside it doesn't look different than the previous versions we've seen running around, but this time we can also peer into the cabin, and that's where things start to get interesting. Despite the best arm-waving efforts by the development engineers, our spy photographers managed to snap a couple of shots of the interior. And though it looks far from being ready for production, the components we see appear to have been lifted from the Mercedes S-Class Coupe – particularly the steering wheel, digital instrument cluster, and almost the entire center console. This speaks to a deeper collaboration between the British and German automakers. The 4.0-liter twin-turbo V8 from the Mercedes-AMG GT, C63, and G500 4x42 is already being adapted for use in the next generation of Astons. Related Video:

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.