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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.

BMW M3 takes on Mercedes-AMG C63 S in track battle from Evo

Over the last few decades, BMW has firmly established an enviable reputation among automotive enthusiasts by making what many consider to be the very best sporty sedans and coupes in the world. Every few years, a new challenger appears from one of the German brand's long list of competitors, but the result always seems to be the same: Close, but no cigar. The latest challenger to BMW's on-track crown comes from Mercedes-AMG in the form of the C63 S sedan. The AMG has a lot more power, an excellent and balanced chassis and it looks beautiful. But is it good enough to outperform the latest BMW M3? We're not going to spoil it for you. Watch the latest Deadly Rivals video from Evo to find out which competitor comes out on top.

2024 Mercedes-Maybach EQS 680 SUV tops $180,000

The 2024 Mercedes-Maybach EQS 680 SUV is staking claim to the "next era of driving pleasure," but that pleasure will come at a steep price. The company officially announced Wednesday that the super-lux, battery-electric SUV starts at $181,050 (assuming the $1,150 destination fee doesn't increase for 2024) — $50,000 more than the standard Mercedes-Benz EQS 580. And you can order one starting today.  While U.S. figures are still partially up in the air, we do have some preliminary specs. To go with its 649-horsepower output, the EQS 680 SUV was rated at 600 km of total range on the WLTP cycle, which works out to about 373 miles. While Mercedes-Benz doesn't have EPA figures to offer, the EQS 580 is rated at approximately 340 miles with the same pack and a very similar (613 km) WLTP-certified range. 0-60 comes in just 4.1 seconds on the way to a top speed of 130 MPH. Charging the EQS 680 SUV back up from 0% will take a bit longer — nearly 13 hours on a Level II AC charger — but DC fast charging (10-80%) takes just 31 minutes at its max throughput rate of 200 kW.  The Mercedes-Maybach EQS 680 SUV is available with five different two-tone color combinations. All of the two-tone options will feature the lighter color on the bottom half of the SUV, since the darker tone up top better accentuates the vehicleÂ’s aerodynamics. Maybach-specific design details include vertical metal-look lines in the EQSÂ’ faux grille and a Mercedes-Benz star ornament on the hood.  ThereÂ’s a Maybach logo on the D-pillar and the taillights have a unique running light pattern. Mercedes-Benz says 21-inch wheels are standard for now; larger 22-inch wheels, as well as a sixth two-tone paint option, will come later. Related video: This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings.