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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 GLE Coupe spotted in almost undisguised AMG form

Say what you will regarding the form and function of the BMW X6, the bottom line is that BMW essentially pioneered a winning formula, sloping a roofline onto an existing model to make a new and highly lucrative) derivative. No wonder rival Mercedes-Benz is clamoring to follow suit with models like the one pictured here. Under development for some time now, the model originally slated to be called the MLC and now expected to be dubbed GLE Coupe looks about ready for its big debut. It's based on the replacement for the current M-Class (to be rechristened GLE) but with that vital sloping roofline to make it more rakish. This particular example seems to be an AMG version and was spied with only minimal camouflage around the front and rear bumpers while undergoing testing in snowy climes. That could be the full-on GLE63 AMG performance variant, or the new AMG Sport model destined to debut at the Detroit Auto Show next month. If it's the former, expect it to be packing the same 4.0-liter twin-turbo V8 as the new Mercedes-AMG GT, where it produces either 462 horsepower or 510 depending on spec - ready to take on the X6 M and whatever Audi is preparing to throw at it.

One year since accident, most of Schumacher's sponsors still on board

It's been almost exactly a year now since Michael Schumacher suffered massive head trauma in a catastrophic skiing accident in Switzerland, and while details on his recovery have remained few and far between, we're sure his progress has been anything but easy. Meanwhile his sponsors have faced a difficult decision of their own: to continue supporting him financially despite getting nothing tangible in return, or cancel their contracts and suffer the blow to their public image as a result. According to Schumacher's longtime manager Sabine Kehm in speaking to news outlets like Italy's La Gazzetta dello Sport, most of the imperiled former F1 driver's personal sponsors have remained by his side. The encouraging news updates on what we reported back in August, that Mercedes-Benz and German investment firm Deutsche Vermogensberatung AG were sticking with the champ through the hard times. Other sponsors, including helmet manufacturer Schuberth and watchmaker Audemars Piguet, are also believed to still be on board. Not all of Schumi's sponsors have stuck around, though. German bottled water brand Rosbacher reportedly broke off its contract with Schumacher back in July. And more recent reports confirm that Gaydoul Group fashion labels Navyboot and Jet Set canceled their sponsorship deal earlier this month. These and other contracts made Schumacher one of the world's highest paid sports figures and the first billionaire athlete in the world. Even in retirement, he was still making more than most active F1 drivers. While we don't know just how much he's pulling in during his recovery, here's hoping that his continued sponsors can find a way to make their support worthwhile – and that the champ makes a full recovery in the near future.