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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.

2018 Lincoln Navigator vs luxury SUV rivals: How it compares on paper

The all-new 2018 Lincoln Navigator is an impressive, luxury-lined beast. However, while its Black Label interior stood out most during our first drive of the new Navigator, it also seemed pretty clear that much of this full-size SUV was superior to the competition in a number of fundamental ways. Its Raptor-sourced 3.5-liter V6 had class-leading power for one, and its third-row seat seemed as spacious and comfortable as its rivals' are cramped and barely usable. To search for your next new vehicle, try Autoblog' s Car Finder. Yet, I wanted to take a closer look at how the Navigator fully compares on paper to its competitors - especially the Cadillac Escalade with which it most directly competes. The below spreadsheet should tell the whole story, but as you can see, there's an awful lot of class-leading green highlighter in the Navigator's column. The cargo volume and third-row legroom numbers are particularly telling, with the latter actually going up to 42.3 inches when you slide the second-row fully forward. Now, a few things to note about the above spreadsheet. The GLS-Class is also available as the GLS 550, which boasts a 4.7-liter V8 that just comes up short to the Navigator with 449 horsepower but has to deal with only 5,578 pounds. Its $94,950 price tag is comparable to the Navigator Black Label. Much of the LX 570's information is also applicable to the Toyota Land Cruiser, which, badge aside, could certainly be considered a member of this segment given its feature content and still-hefty price tag. It has better ground clearance and approach/departure angles than its Lexus sibling, along with an as-indicated lower price. Much of the Escalade's information also applies to the GMC Yukon Denali, while the Infiniti QX80 is applicable to the Nissan Armada. Related Video: Cadillac Infiniti Lexus Lincoln Mercedes-Benz SUV Luxury Off-Road Vehicles consumer lincoln navigator

Mercedes-Benz G500 4x4 squares up for production

After showcasing the G500 4x42 in concept form at the Geneva Motor Show this past March, Mercedes has confirmed that it's putting the monster truck into production. The Mercedes G500 4x42 is a more extreme take on the legendary Gelandewagen. It ditches the extra set of wheels from the earlier G63 AMG 6x6, but keeps its wider track and jacked-up suspension, complete with portal axles, 22-inch wheels, 325/55-section tires, and a good foot and a half of ground clearance. It also loses the AMG-spec engine in favor of a 4.0-liter twin-turbo V8 with 422 horsepower, based on the unit in the C63 and AMG GT. The smaller engine (and smaller axle-count) makes its list price a little easier to swallow than the half-million Benz commanded for the 6x6, but it'll still be a rather large pill. Pricing in Germany is listed at ˆ226,100 – equivalent to over $250k at current exchange rates. That makes it the second most expensive version of the G-Class currently available, behind the G65 that retails for ˆ271,915 (~$309k) in Germany and $217,900 in the US. MBUSA tells Autoblog that there are currently no plans for bringing the G500 4x42 to North America. But if it were to ford the Atlantic, it would likely carry a price tag in the neighborhood of $200k for the privilege of riding higher than just about any other commercially available passenger vehicle on the road. Alle Neuheiten der legendaren G-Klasse ab sofort bestellbar: Der Mercedes-Benz G 500 4x42 geht in Serie Stuttgart, Jun 19, 2015 Stuttgart - Outstanding response to the "Extreme-G": the G 500 4x42 show car proved hugely popular with many customers and is set to enter series production. In the superlative-studded history of the G-Class, the G 500 4x42 is the new highlight in the model range. The technical package consists of the all-wheel drive powertrain including portal axles and the new 4-litre V8 engine with twin turbocharging and an output of 310 kW (422 hp). All the other G-Class models have further improved interiors and powertrains, and meet the highest emissions standard Euro 6. The G 350 d, G 500, AMG G 63, AMG G 65 and G 500 4x42 can be ordered with immediate effect. A new addition to the extreme G-Class model family: the AMG G 63 6x6 is gaining a sibling in the form of the G 500 4x42.