Auto blog

Mercedes has X6 in its crosshairs with the GLE Coupe

In the last month, Mercedes-Benz has taken the sheet off two versions of its GLE Coupe: the 450 AMG and Mercedes-AMG GLE63 S. The models represent the German brand's shot across the bow at the BMW X6 in the luxury-crossover-four-door-coupe segment, including the high-performance M version of the bodystyle. Not much separates the styling between the two versions. Both feature sweeping arches over the hood and roofline to create their coupe-like appearance. Up front there are huge air intakes with a wide grille on top that's bisected by the brand's traditional star. The AMG version tweaks that look with the division's A-wing grille. At the rear, there are wraparound taillights and a chrome strip. The higher performance version also sports a modified diffuser and air outlets. No matter which one buyers choose, they get a healthy amount of power nestled under the hood. The 450 AMG packs a 3.0-liter, twin-turbo V6 with 362 horsepower and 384 pound-feet of torque with a nine-speed automatic. Opting for the GLE63 means a massive boost with 577 hp and 561 pound-feet from a 5.5-liter twin-turbo V8 routing through a seven-speed auto gearbox. Either way, customers get Merc's 4Matic all-wheel drive system. The luxury crossover coupe segment is often maligned for looking awkward, but Mercedes clearly sees room to grow there. Check them both out live from the 2015 Detroit Auto Show floor in the galleries above.

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.

Mercedes updates G-Class including new 4.0-liter twin-turbo V8 [UPDATE]

UPDATE: Information on US availability (including corrected output figures) added to the revised text below. Mercedes has been building (or having Magna Steyr build) the G-Class for an unfathomable 36 years now. Needless to say, the legendary off-roader wouldn't still be around if not for the occasional update here and there, and that's just what the German automaker announced today. The list of enhancements to the iconic Gelandewagen is almost as long as its lifespan, but the most salient point here is the introduction of a new engine. The revised G550 introduces a new 4.0-liter twin-turbo V8, based on the high-performance engine in the Mercedes-AMG GT and C63, but retuned: in this application, it produces 416 horsepower and 450 pound-feet of torque (compared to 453 hp and 440 lb-ft in the GT or 503 and 480 in the GT S). We'd expect that engine to gradually make its way into other models as well. Though the G500 is the only one with a completely new unit, the other engines in the lineup have also been updated. The G350d bumps from 211 hp and 398 lb-ft to 245 hp and 442 lb-ft, the AMG G63 jumps from 536 hp to 563 (torque remains constant at 560 lb-ft), and the top-of-the-line, twelve-cylinder G65 (which we'll be getting Stateside for the first time) now produces 621 hp and a massive 738 lb-ft. Those figures result in a 0-62 time of 8.9 seconds for the diesel, 5.9 for the G500, 5.4 for the G63 and 5.3 for the G65 – which are altogether might impressive for a vehicle as big and boxy as the G-Wagen. All but the G65 now feature stop/start systems to help reduce fuel consumption too. Benz also revised the suspension tuning (while offering optional active dampers) and reprogrammed the ESP, ASR and ABS systems. Inside there's a new instrument cluster, the non-AMG models get new bumpers and flared wheel arches, and there's a bright new array of colors available for the AMG models, which can also be ordered in a new special Edition 463 featuring unique trim inside and out. The revised models will be arriving at US dealers in November, however the diesel model will not be making the transatlantic journey to our shores. The data in the press release below (as well as the images in the gallery above) pertain to the European models, with the correct output figures for the US models amended in the text above. Related Video: Mercedes-Benz G-Class Makeover for an off-road icon Stuttgart.