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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 A45 AMG in downhill battle with slipstream skateboarder

We're told it takes "performance, control and expression" to pilot a longboard skateboard down a mountain road, and that those happen to be the same values embodied in the Mercedes-Benz A45 AMG. That's how the two came to be combined in a black-and-white short film called Silver Slipstream.
There's no talking, no engine note and no color, just some music, a 'boarder and a car on a long cruise down the Franschhoek Pass in the Western Cape of South Africa." Despite that, it's actually a pretty entertaining video of the latest Mercedes-Benz hot hatch married with extreme sports. You can watch how it all goes down in the video below.

Watch this perfectly nice Mercedes get crushed by a front-end loader

In a world where the YouTube hoax continues to thrive, it's hard to know what to think of this little vid, but here are the facts as we know them: a coupe that looks like a first-generation Mercedes-Benz CLK gets crushed by a giant front-end loader. There you have it.
Our questions arise in the aftermath - we know industrial resource machinery is heavy, but the Benz gets squashed so flat we wonder if someone's trying to play a joke on us. We hear that the white coupe may have been the heavy-equipment operator's foreman's car, but who knows? The on-camera interview seems awfully conveniently placed, yes? See for yourself in the video below and then leave us your thoughts in Comments.