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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.

Daimler cutting Mercedes and Smart prices by 18% in Switzerland

Automakers including Daimler and PSA are now offering substantial discounts in Switzerland to make it more affordable for Swiss customers to buy their cars, according to the latest from Bloomberg. The move, instituted by two of Europe's largest automakers, comes in response to the surprise decision last week by the Swiss National Bank to suddenly abandon its longstanding policy of capping trading of the Swiss Franc to 1.20 francs per euro. The policy has sent the value of the franc soaring, making imports into Switzerland less expensive while increasing the value of its exports. The discounts being offered by the automakers could therefore be viewed more as price adjustments to better match the changing currency value rather than an actual incentive. But whichever way you look at it, a new Mercedes or Smart will now cost Swiss buyers 18 percent less than the list price, while Peugeot and Citroen dealers in the Confoederatio Helvetica are chopping 1,000 francs ($1,144) off the price of a new passenger car or 1,500 francs ($1,716) for a new commercial vehicle. Conversely, high-end Swiss watchmakers like Rolex and Patek Philippe are looking at increasing their prices to keep up with the currency fluctuation, particularly in Japan, where the yen has dropped 17 percent against the franc in the past few days. News Source: BloombergImage Credit: Sandro Campardo/Keystone/AP Mercedes-Benz smart Car Buying Citroen Peugeot switzerland

2013 Mercedes-Benz SL65 AMG

Make way for the 2013 Mercedes-Benz SL65 AMG, the most wonderfully preposterous car I have ever driven.
There is absolutely no reason why any two-seat roadster should be fitted with a twin-turbocharged 6.0-liter V12 developing 621 horsepower and 738 pound-feet of torque, but I sure am glad that Mercedes-Benz doesn't see things that way.
Drop into the leather-lined cockpit of this $213,145 provocateur, floor the accelerator pedal as I did over and over again, and 60 miles per hour falls in a traction-limited 3.9 seconds. Top speed has been electronically held to 186 mph (this apparently saves Gulfstream jet owners from embarrassment). Forget the SL550 and SL63 AMG, the valets will trip over themselves attending to the tycoon driving this thoroughbred - it's the real deal.