1985 Mercedes-benz 380sl Base Convertible 2-door 3.8l 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.

The most or nothing: Mercedes-Maybach S650 Cabriolet pushes the luxury limits

After the introduction of the Mercedes-AMG GT Roadster at the Paris Motor Show this fall, we informed you that Mercedes-Benz has a convertible conundrum, a surplus of drop-tops that seemingly threatens to self-cannibalize within the brand's ever-proliferating lineup. Benz's head of design, Gorden Wagener, who spends much of his time in Southern California, argues it's not a problem: Each convertible, in its ideal construction, would intrinsically vanquish any issues. "The bad is the enemy of the good," he said, not exactly quoting Nietzsche. Now, the three-pointed star brand has upped the top-down ante, with the unveiling this week at the Los Angeles auto show of the Mercedes-Maybach S650 Cabriolet, a vehicle so opulent, it sits in price and position atop the uber-luxury brand's current top-of-the-line offering, the $247,900 Mercedes-AMG S65 Cabriolet. View 24 Photos "Mercedes-AMG is our performance brand so it's all about performance stuff," says Wagener in a one-on-one interview on the roof of a Beverly Hills mansion just before the new car is unveiled. "Of course, Maybach has power, too, but it's the ultimate in luxury. So it's more on that side. And for me in the interior, it's the haute couture of the automobile, so we tried to up that a little more with details. And on the exterior, it's a more superb appearance up front, more chrome, more rich, and of course we tried to up that branding even more. The S-Class is the best car in the world, we consider, I always thought we could raise the Mercedes brand. And it's the same with the S convertible." Why does Mercedes-Benz need a flagship atop its flagship? Because, when climbing the mountain of automotive luxury there is always the customer who, when he or she reaches the pinnacle, wants more. A car brand, especially one with deep pockets and luxurious heritage like Mercedes, can always further gild the automotive lilies, creating a step up for those for whom the brand's motto, The Best or Nothing, is a literal life credo. "It's always our job to make it better," Wagener says. "Each little detail, the wood, the wood under cover of the cabriolet, the leathers. All the super luxury details that make a luxury car into a super luxury car. The key is to make a modern luxury design and not a traditional luxury design. There is definitely a market for traditional luxury, but we always wanted to have Mercedes, Maybach in particular, as a modern luxury car.

Recharge Wrap-up: Smart Silvretta E-Car Rally, Uber's autonomous Teslas

Daimler took part in the 2015 Silvretta E-Car Rally with seven electrified cars from Mercedes-Benz and Smart. It is the automakers' sixth year competing in the competition in the mountains of Austria's Montafon region. Mercedes fielded two B-Class Electric Drives, an SLS AMG Electric Drive, C350e, S500e and GLE500e 4Matic alongside a Smart Brabus Fortwo Electric Drive Cabriolet. The Silvretta Rally sees some 150 vintage cars and 30 electric vehicles take part in the event, which took place from July 2 through 5 this year. Read more in the press release from Daimler below. Uber CEO Travis Kalanick says that he'd want to buy all of Tesla's autonomous vehicles if they were available in 2020. Venture capitalist Steve Jurvetson relayed Kalanick's comments from the Top 10 Tech Trends dinner in June. Jurvetson also praises self-driving cars, saying, "I believe they are already safer than my parents, and I would trust my kids with them. And they're just going to get better." Jurvetson also believes that taxi services will prosper from the use of autonomous cars in the future. Read more at Hybrid Cars. A Michigan legislator has introduced a bill that would count burning industrial solids — such as tires and plastics — toward the state's renewable energy mandate. Aric Nesbitt's bill would "remove unnecessary burdens on the appropriate use of solid waste as a clean energy source" in order to meet the state's requirement that 10 percent of energy come from renewable sources. Critics argue that these materials are not truly renewable, and that burning them causes pollution and emits greenhouse gases. The proposed bill would also repeal a law requiring utilities to work toward reducing energy use by one percent per year. Read more at Treehugger. Will the cars National Electric Vehicle Sweden (NEVS) builds in China bear the Saab name? While NEVS is the newest parent company to Saab after being acquired in bankruptcy from Spyker, there's no confirmation that the electric vehicles it builds at its Tianjin plant will be sold as Saabs. Swedish defense firm Saab AB, which held the rights to the Saab name, withheld permission to use it after NEVS declared bankruptcy last year. "The exact models and brands are not finalized yet," says a NEVS spokesman. The company says it is spending $200 million to build the new factory in China, with an expected annual capacity of 200,000 vehicles. Read more at Automotive News Europe.