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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.

The Aston Martin DBS Superleggera leads this month's list of discounts

The average price of a new car in America last year was $35,932. This month, the biggest discount off the retail price of a new car in America is awfully close to that figure at $34,001. For those keeping track (as we do every month with a post like this one), that's by far the largest discount we've seen so far this year, and it means buyers of the 2020 Aston Martin DBS Superleggera are paying an average transaction price of $273,819. The British automaker calls the DBS "the ultimate production Aston Martin." With a 715-horsepower V12 engine pulsating underhood, sufficient to push this grand touring coupe from 0-60 in a skosh over 3 seconds and on to a top speed of 211 miles per hour, who are we to argue? If that's too rich for your blood — and let's be honest, it's still a whole heck of a lotta money — the next biggest discount might be at least a little more attractive. According to data provided by TrueCar, buyers of the 2019 Mercedes-AMG GT are seeing discounts of $23,103 off the car's average sticker price of $159,995. That's a heck of a lot of car for $136,892, though admittedly still expensive. But at 14.4% off retail, it's a better deal than the $132,122 average transaction price of the 2020 BMW M8. The BMW's $16,497 discount equals 11.1% off the M8's $148,619 sticker. For a look at the best new car deals in America based on the percentage discount off their suggested asking prices, check out our monthly recap here. And when you're ready to buy, click here for the Autoblog Smart Buy program, which brings you a hassle-free buying experience with over 9,000 Certified Dealers nationwide. Featured Gallery Aston Martin DBS Superleggera View 33 Photos Aston Martin BMW Mercedes-Benz Car Buying Convertible Coupe Luxury Performance Supercars consumer car values biggest discount

Mercedes-Benz F 015 Luxury in Motion has an absurd name, remarkable vision

We often hear about cars that don't look good in pictures. "You need to see it in person," people say. Well, the Mercedes-Benz F 015 Luxury in Motion, which the company brought to Detroit after debuting it at CES, is just such a vehicle. Besides having a very silly name and looking, according to one Autoblog editor, like a suppository, this is a genuinely striking piece of design when viewed in the metal. The shape is aerodynamic in the extreme, but still features subtle details and styling cues. Whether that be the small dorsal ridge on the roof, the simply huge wheels and the Cylon-like, wraparound taillights, despite a fairly uniform shape, there's still a lot to see on the F 015. That's doubly true in the cabin, which is typically luxurious, while also doubling as a rolling lounge withs eating for four. Accessible via barn doors that open up to 90 degrees, the F 015's cabin features fine woods and leathers, as well as seats that swivel around to face each other. Screens abound (there are six in total), and gesture-and-touch-based controls are the order of the day, producing what Mercedes calls a "digital arena." As an autonomous vehicle, MB doesn't offer a lot of technical information on propulsion or guidance systems, simply saying that the pod-like concept could accommodate an electric motor and fuel cell. Take a look at our gallery of live images Mercedes' sci-fi vision, and if there's an auto show coming to your neck of the woods, get out and see this strange and impressive car.