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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.

Brabus takes Mercedes-Maybach even further

Hard as it may be to imagine for most, even the flagship Mercedes-Maybach S600 won't be enough for some. And those individuals can now turn to Brabus to customize their limousines even further. The latest tuning package includes an array of enhancements, starting with the engine. That's where Brabus has installed all the upgrades from the Brabus Rocket 900, boring the 6.0-liter twin-turbo V12 out to 6.3 liters, and producing a massive 887 horsepower and 1,106 pound-feet of torque. That'll propel the limo up to an Autobahn-crunching top speed quoted at 217 miles per hour, reaching 62 in just 3.7 seconds. Buyers going for the less potent Maybach S500 offered in certain markets can also opt for the Brabus B50-540 performance kit, which offers 83 extra hp and a further 88 lb-ft of torque. Brabus has also fitted a choice of 21-inch wheels, retuned suspension dropped by an inch, a full aero kit, and new radiator grille. And as sumptuous as it is already, the tuner is also offering upgrades to the interior with special leather and Alcantara upholstery, wood and carbon-fiber trim, and its full iBusiness suite. All of which promises to make the flagship Mercedes even more expensive, of course, but if there was ever an example of "if you have to ask, you can't afford it," surely the Maybach is it. BRABUS refines the new Mercedes-Maybach 662 kW / 900 HP, 1,500 Nm, top speed 350 km/h plus, high-tech forged wheels, sporty-elegant design and even more luxurious BRABUS fine leather interiors The new Mercedes-Maybach represents the absolute pinnacle of state-of-the-art automotive engineering. Nonetheless, even this luxury sedan offers room for individual refinement, which BRABUS (Brabus-Allee, D-46240 Bottrop, phone + 49 / (0) 2041 / 777-0, fax + 49 / (0) 2041 / 777 111, internet www.brabus.com) realizes with a select team of the best engineers, designers, technicians and master craftsmen. The BRABUS ROCKET 900 6.3 V12 twin-turbo increased-displacement engine provides the Mercedes-Maybach S 600 with an enormous rated power output of 662 kW / 900 HP (887 bhp) and a peak torque of 1,500 Nm (1,106 lb-ft). Top speed is in excess of 350 km/h (217 mph). To match the extreme performance of the luxury liner, the appearance of the four-seat car receives some sporty-elegant emphasis with BRABUS aerodynamic-enhancement components and BRABUS Monoblock "PLATINUM EDITION" 21-inch forged wheels. Another BRABUS domain is exclusive interior design.

Next Aston Vantage will be the only way to get an AMG V8 with a stick

With only a few exceptions, most of them factory customs, AMG hasn't built cars with manual transmissions. It just isn't the way things are done in Affalterbach. But now that Mercedes's in-house speed shop will be supplying engines to Aston Martin, the world will be treated to cars with three pedals and overengineered German V8s wrapped in a pretty British package. We're into it. The news comes from Car and Driver, which spoke to Aston Martin CEO Andy Palmer about the new Vantage among other things. Palmer confirms to C/D that the Vantage will continue to offer manual and automatic transmissions when the next-gen car arrives featuring the AMG 4.0-liter twin-turbo V8. In its most potent form, the eight-cylinder makes 503 horsepower and 479 lb-ft of torque in the AMG GT S. Figure on a little more from the Aston-ized version, just for fun. The current V8 Vantage GT makes 430 hp and 361 lb-ft from its naturally aspirated 4.7-liter. While some may lament the new engine's forced induction, that added power and the thoroughly modern behavior of the AMG engine should be welcome. While the AMG V8 is currently only planned to go into Aston's entry-level car, C/D does mention a possibility of it (and perhaps its three-pedal transmission) making its way into other cars as an economy option for certain markets. If a V8 DB11 were to be offered, don't expect it to show up here, though. There's also no word on who will supply the manual for the AMG-Aston mashup, but it likely will be a transaxle like the current Vantage. Ex-factory manual AMGs aren't totally unprecedented. Pagani has built some three-pedal cars with its massaged AMG V12s. Compared to those, however, these manual Vantages can be considered mass-production cars. And really, any increase in the number of sticks mated to AMG engines can only be a good thing. Related Video: News Source: Car and Driver Aston Martin Mercedes-Benz Coupe Performance mercedes-amg confirmed aston martin v8 vantage aston martin vantage