2001 Mercedes-benz M-class on 2040-cars

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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.

Sunday Drive: Volvo hits a crossover home run, and people still love sports cars

Looking back at the week that just was clearly tells us at least three things. First, crossovers don't have to be boring. Second, people still love sports cars, from the attainable (Audi TT RS) to the fanciful (Mercedes-AMG GT C). And finally, the traditional German trio of premium luxury brands had better not rest on their laurels, because credible challengers are coming in from every direction. The biggest reveal of the week, at least judging by the interest of Autoblog readers, was the Volvo XC40. Not only is the little 'ute a looker, it introduces some innovative new buying/leasing schemes designed to appeal to an audience accustomed to trading in and trading up every couple of years. Think of Volvo's flat-fee lease as you would a smartphone contract, and you'll be on the right track. Genesis looks to have a hit on its hands in the form of the G70 sport sedan. We took a Korean-spec model for a spin and found a lot to like about the upstart contender. We can't wait to sample one here in the United States to see how it stacks up against the Audi A4, BMW 3 Series, and Mercedes-Benz C-Class. In other news, we're still really excited to see a production Ford Ranger Raptor. But if you just can't wait for the official reveal — it's OK, neither can we — take a look at the renderings in our post down below. As always, tune in to Autoblog next week for a front-row seat to all the happenings worth following in the automotive industry. Volvo XC40 revealed | Crossover at the crossroads of style and substance 3 ways the Volvo XC40 is a game-changer Genesis G70 First Drive | An arrow to the heart of the Germans 2018 Audi TT RS Drivers' Notes | Five pots of turbocharged honey 2018 Mercedes-AMG GT C Quick Spin | This is the AMG GT you want The Ford Ranger Raptor is real, and this is what it might look like

Mercedes shows off more of the S-Class Cabriolet

Mercedes has been very much into teasing lately, providing various kinds of peeks at the recently revealed Mercedes-AMG C63, the coming 2017 E-Class sedan, and the S-Class Cabriolet. We've seen the least of that latter car but it could be the one we know the most about. The sixth member of the S-Class family after the standard sedan, the long-wheelbase sedan, the Maybach models, the Pullman, and the coupes, this one puts a fabric top on that two-door model and then lets owners take it off. After the sketched rendering from two weeks ago, this latest photo from Mercedes shows us pretty much what we're going to get, and since we're huge fans of the coupe it looks like we'll be huge fans of this, too. It will certainly come heaped with techno gizmos like heated armrests, and a set of Burmester speakers in the tonneau cover. In case you're wondering, those screen-looking things behind the front seat headrests are fans for the Airscarf neck warming system. The press release below has a bit on the history and demise of four-seater Mercedes droptops, which helps remind us why we should care about the trim being resurrected 45 years later. Related Video: The new S-Class Cabriolet: A star returns Stuttgart, Aug 25, 2015 - Coveted dream car of the 1960s meets star of the 2015 International Motor Show in Frankfurt: the new Mercedes-Benz S-Class Cabriolet is following in the tradition of the open-top S-Class (model series 111 and 112) from the period 1961 to 1971. Unmistakeable, exclusive design, fine materials with maximum high-class appeal in the interior and state-of-the-art technology in the S-Class characterise the concept behind both cabriolets. "After 44 years we can again offer friends of our company an open variant of the S-Class. The new S-Class Cabriolet symbolises our passion for individual and timelessly exclusive mobility, which we share with our customers", remarks Ola Kallenius, Board Member of Daimler AG, Mercedes-Benz Cars Sales. With the new S-Class Cabriolet Mercedes-Benz is setting itself the standard of building the most comfortable cabriolet in the world. When it comes to climate comfort the enhanced automatic wind protection system AIRCAP, the AIRSCARF neck-level heating system, the heated armrests, the seat heating also in the rear plus the intelligent fully automatic climate control ensure that this is indeed the case.