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Mercedes-Benz engines with 48-volt systems coming in 2017

As part of a big green push announced yesterday, Mercedes-Benz is jumping into the world of 48-volt power. The company will launch a new family of efficient gasoline engines next year and will begin rolling out 48-volt systems with it, likely in its more expensive cars first. Mercedes will use the 48-volt systems to power mild-hybrid functions like energy recuperation (commonly called brake regeneration), engine stop-start, electric boost, and even moving a car from a stop on electric power alone. These features will be enabled through either an integrated starter-generator (Mercedes abbreviates it ISG) or a belt-driven generator (RSG). (RSG is from the German word for belt-driven generator, Riemenstartergeneratoren. That's your language lesson for the day.) Mercedes didn't offer many other details on the new family of engines. There are 48-volt systems already in production; Audi's three-compressor SQ7 engine uses an electric supercharger run by a 48-volt system, and there's a new SQ5 diesel on the horizon that will use a similar setup with the medium-voltage system. Electric superchargers require a lot of juice, which can be fed by either a supercapacitor or batteries in a 48-volt system. Why 48-volt Matters: Current hybrid and battery-electric vehicles make use of very high voltages in their batteries, motors, and the wiring that connects them, usually around 200 to 600 volts. The high voltage gives them enough power to move a big vehicle, but it also creates safety issues. The way to mitigate those safety issues is with added equipment, and that increases both cost and weight. You can see where this is going. By switching to a 48-volt system, the high-voltage issues go away and the electrical architecture benefits from four times the voltage of a normal vehicle system and uses the same current, providing four times the power. The electrical architecture will cost more than a 12-volt system but less than the complex and more dangerous systems in current electrified vehicles. The added cost makes sense now because automakers are running out of ways to wisely spend money for efficiency gains. Cars can retain a cheaper 12-volt battery for lower-power accessories and run the high-draw systems on the 48-volt circuit. The industry is moving toward 48-volt power, with the SAE working on a standard for the systems and Delphi claiming a 10-percent increase in fuel economy for cars that make the switch.

Maybach and Aston Martin alliance talks fall apart

If you have, like us, been salivating at the notion of a new generation of Maybach and Lagonda ultra-luxury crafts built by Aston Martin, we've got some bad news: According to reports emanating from Germany, talks between AML and Daimler have broken down.
The proposal under negotiation would have seen Daimler outsourcing production of the next family of Maybach models to Aston Martin, which in return would benefit from Mercedes-Benz platforms and engines - not only for its svelte GTs, but also for its own future Lagonda line of limousines and luxury SUVs. That, and a boatload of money - or at least that's what AML was reportedly seeking, an issue that served as the stumbling block over which the deal reportedly collapsed.
That's not to say the two parties couldn't still reach some sort of a compromise, but short of that, Daimler may opt to either shut down Maybach altogether, find another partner, or take another stab at building new models internally.

Mercedes-Benz GLE Coupe is ready to tackle BMW's X6

Under the chiseled hood of the GLE 450 AMG sits a 3.0L, twin-turbo V6 with 362 hp and 384 lb-ft. Years after the polarizing BMW X6 originally hit the market, Mercedes-Benz has finally unveiled its slope-roofed challenger, and much like Munich's Sport Activity Vehicle, we think the new GLE Coupe will split opinions rather dramatically. While it clearly shares its form factor with BMW's X4 and X6, the GLE Coupe's styling is all Mercedes, borrowing the more organic shapes used on the company's most recent new model, the AMG GT. Strips of chrome and the iconic silver arrow logo bisect a large, rectangular grille, while the fascia on the GLE 450 shown above features three rather dramatic lower air intakes. The headlights, meanwhile, fit in with MB's latest styling language. In back, slim, wraparound taillights share some resemblance with the new S-Class Coupe. The cabin is recognizable and looks to be of extremely high quality, with the featured vehicle showing off quite a lot of carbon-fiber trim. A thick-rimmed, flat-bottomed steering wheel dominates the driver's area, while a large, tablet-like display crowns the center stack. The same sort of touch-controlled interface and input dial found on the new C-Class controls the information on that screen. Under the chiseled hood of the GLE 450 AMG, the first of Mercedes' AMG Sport models, sits a 3.0-liter, twin-turbocharged V6. Unlike the 329-horsepower unit in the C400 and E400, the force-induced V6 generates 362 hp and an equally robust 384 pound-feet of torque. It's mated up to a new nine-speed automatic transmission and Mercedes' 4Matic all-wheel-drive system. A new version of the popular Airmatic suspension is being offered with the ADS Plus continuously variable dampers while Mercedes is also fitting its Active Curve System, complete with active roll stabilization. Mercedes doesn't provide many additional details on the GLE Coupe range, as it were. We know about the 450 AMG, but it's not clear whether there will be a GLE 400 or non-AMG 450, or if Mercedes will move it down market and offer a GLE 350 to compete with the X6's xDrive35i. There's also no mention of when or where the new model will debut, although previous reports point to the 2015 Detroit Auto Show. Prices and an on-sale date, meanwhile, have not been revealed. Scroll down for the full press blast from Mercedes-Benz on its newest model, the 2016 GLE Coupe. Premiere: Mercedes-Benz GLE Coupe A sportier choice Stuttgart.