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Maybach Pullman, S550 4Matic coming next

Mercedes-Benz officially revived the Maybach name as a sub-brand with the reveal of the luxed-up S600 at the LA Auto Show last week, but that's only the tip of the proverbial iceberg when it comes to the German automaker's new plans for its uber-prestige marque. Motor Trend reports that Mercedes is planning two additional Maybach variants to launch in the near future, both of them also based on the S-Class. First up, we're told to expect the even longer Pullman limousine to launch, complete with Maybach treatment, at the Geneva Motor Show next March – although this model won't necessarily be offered in America. Whether it will or not, the Mercedes-Maybach S600 Pullman will be even bigger, more luxurious and more expensive than the one just unveiled. What is being planned for US customers, however, is an Maybach S550 4Matic. Mating the 4.7-liter twin-turbo V8 to all-wheel drive would be a boon for wintery upscale markets, and is reportedly a more feasible option than trying to pair the V12 to the 4Matic system. As for other model lines, we've heard rumors of a Maybach GL-Class utility in the pipeline, but have yet to receive any such confirmation. Car confirms, however, that we shouldn't expect to see AMG versions of Maybach models. The two are being cultivated as separate pillars atop the Mercedes range – one focused on performance, the other on luxury – and never the twain shall meet. The previous model line did breed a sportier Maybach 57 S, however, and we wouldn't be surprised to see a similar treatment applied to one of the new models should Daimler find there's demand. In related news, MT also reports that a new S-Class Cabriolet is coming around the corner, and that the G550 is preparing to drop its aging 5.5-liter V8 in favor of the GL's 3.0-liter twin-turbo V6.

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.

Firing of M-B boss upheld

Ernst Lieb, the disgraced former CEO of American operations for Mercedes-Benz, will not be getting any more money from the Silver Arrow'd teat. His wrongful dismissal suit against MB's parent company, Daimler, was tossed out of a German appeals panel. This, followed the initial rejection by a lower court last year.
According to court documents acquired by Automotive News, Lieb was found to have "accepted payments of substantial value to which he - as he was aware - had no claim."
Lieb took over American operations from former CEO Paul Halata in September of 2006. Reports surfaced in October of 2011 that Lieb was dismissed from his posting at MB, with a variety of rumors swirling. Eventually, news broke that financial wrong doing was responsible for the German's firing.