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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.

Mercedes-Benz says no to price premium on S550 PHEV

The good news? Mercedes-Benz won't be charging any extra for the plug-in hybrid version of the S550 sedan compared to the gas-powered version. The bad news? The gas-powered version is really expensive. The S550 Plug-in Hybrid's pricing will start at a tidy $95,325, the same as the conventional S550, according to Cars Direct. For that price, buyers get a car that delivers 436 horsepower and 479 pound-feet of torque while having the ability to go as far as 18 miles on electric power alone, assuming that the driver in question isn't trying to use all 436 horses. But just in case he or she is, the car can also go from 0 to 60 miles per hour in about five seconds. There's been no word on a fuel-economy rating from the US Environmental Protection Agency (EPA) but the sedan gets 84 miles per gallon on the more lenient European driving cycle. It's unlikely to anywhere close to that stateside, but some folks still might feel they got their money's worth (ha ha) by adding a plug. The S550 Plug-in Hybrid goes on sale in California later this month. The model was first unveiled at the Frankfurt Auto Show in 2013 and shown off at the Los Angeles Auto Show late last year. Related Video: Featured Gallery 2015 Mercedes-Benz S550 PHEV: LA 2014 View 13 Photos News Source: Cars Direct via Green Car ReportsImage Credit: Drew Phillips Green Mercedes-Benz Hybrid PHEV

Maybach officially discontinues all models for 2013

The word "Maybach" has joined the long list of synonyms for the word "kaput." Mercedes-Benz released the price list for the 2013 models of its super-luxury sedans, with the price column simply stating "Discontinued" for each one of them.
The 2012 models, should there be any left for 11th-hour buyers, maintain the increased MSRPs that Daimler slapped on them late last year after it was known the brand would be terminated next year. But you might still be able to wrangle that $100,000 rebate if you ask nicely, or in Russian, or have Rick Ross ask for you.
It shouldn't be too long before we see the ultimate version of the next generation S-Class, the S600 Pullman, that will replace Maybach. Intriguingly, it's said the Pullman will be offered with every S-Class engine, even the four-cylinder diesel.