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2020 Land Rover Defender, a pair of super wagons and watch talk | Autoblog Podcast #655

In this week's Autoblog Podcast, Editor-in-Chief Greg Migliore is joined by Road Test Editor Zac Palmer. They kick things off discussing what they've been driving this week. Greg has been spending time in the 2020 Land Rover Defender 110, and Zac has been driving a pair of super wagons in the 2021 Audi RS 6 Avant and 2021 Mercedes-AMG E 63 S Wagon. Greg follows that up with an interview of Blake Buettner, the managing editor at Worn & Wound, in the final segment. Autoblog Podcast #655 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 What we're driving2021 Land Rover Defender 2021 Audi RS 6 Avant 2021 Mercedes-AMG E 63 S Wagon Watch interview with Worn & Wound managing editor Blake Buettner Feedback Email – Podcast@Autoblog.com Review the show on iTunes

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.

2017 Mercedes-AMG C63 Coupe looks quick, mean

The latest Mercedes-Benz C-Class Coupe isn't even on the road yet. Still, the folks at AMG are already working at tweaking the two-door into a future high-performance variant as the natural challenger for the BMW M4. While this model is heavily camouflaged all the way around, an aggressive face akin to the C63 sedan is already pretty easy to spot. Both cars feature air dams with big openings to feed cool air to the 4.0-liter, twin-turbo V8 under the hood. Compared to the previously spied, standard version of the two-door C-Class, the AMG looks to feature wider front fenders, too. Despite the concealment, other visible high-performance touches include lower side sills and larger brakes peeking out behind the wheels. Of course, the four exhaust pipes sticking out the back are a big giveaway of the coupe's intended high-speed purpose, too. Like the C63 sedan, expect a choice of tunes of the V8 to be available with either 469 horsepower or the more powerful S with 503 hp. The wait to see the two-door without all of this camo shouldn't be too long, either. An earlier report suggests that both the standard coupe and AMG versions could debut at the upcoming Frankfurt Motor Show in September. Related Video: