2005 Mercedes Benz Sl600 Sl 600 Convertible Pano*1 Owner*42,000 Miles*fl Car! 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.

Your guide to vehicle subscription services

They might be extremely limited in scope because of location availability, but vehicle subscription services are a growing trend that most luxury manufacturers are jumping on. Plans are expensive, but you're paying for much more than just the car typically. We highlighted four of the larger plans with a few more listed at the end. Care by Volvo Volvo launched its subscription service last year with its brand-new XC40. It was the only vehicle available for a time, but subscribers can now get an S60 sedan as well. Subscriptions are for two years, with the monthly price including insurance, a concierge service, wear-and-tear item replacements and all maintenance. You'll be able to drive 15,000 miles per year with whichever Volvo you choose, and although there are no options to extend that mileage, you can swap cars after a year. Pricing for the XC40 is $650 per month in base trim, while an S60 can be as expensive as $850 for the R-Design. Volvo's plan is to offer more cars soon through the service, but it's relatively limited compared to others right now. Porsche Passport Porsche has two levels in its subscription service: Launch and Accelerate. Launch will cost $2,000 per month and give you access to the Cayman, Boxster, Macan and Cayenne. All of those but the Cayenne can be had in "S" trim as well. Accelerate is where the fun really starts. For $3,000 per month you can choose from a fleet of 911s, including the S, 4S, Cabriolet and Cabriolet S. If those aren't enough, you can also get the Panamera 4S, Macan GTS and Cayenne S. There are no mileage limits and you can change vehicles as often as you'd like. Also included in the price is insurance, repairs, detailing and any maintenance. It might be extremely expensive and limited to Atlanta only, but this subscription service is second-to-none for what you get. Audi Select Audi just launched its subscription car service, and it's offered in one version for a flat fee of $1,395 per month. For that you'll have access to five different cars including the A4, S5 Coupe, A5 Cabriolet, Q5, and Q7. Not a bad range of vehicles, but it would've been neat to see the recently updated A7 in there too. Maybe in time. Like the others, insurance and maintenance are wrapped up in the price. Audi is allowing for unlimited miles and two car swaps per month here. In addition to that, you'll get two days of free rentals through Audi's Silvercar rental agency should you go on a trip.

2016 Mercedes-Maybach S600 Review [w/video]

"Hindsight is 20/20" is a handy yet disingenuous cliche. The flaw is that hindsight is only instructive up to the moment you would have made a different, perhaps better, decision. At the moment of that deviation the past goes in another direction, one that you can't peer back into because you didn't experience it. So when we say we wish Karl Benz's eponymous firm had produced the Mercedes-Maybach S600 in 2002 instead of the gilded blunder of the separate Maybach brand and its 57 and 62 sedans, we just can't know if the formula would have worked 13 years ago. But we do know the formula adds up superbly right now. A little history: Wilhelm Maybach helped Gottlieb Daimler build a high-speed, four-stroke internal combustion engine in 1885. Eventually Maybach went to work for Daimler's new car company and designed the first Mercedes, the 1901 35-hp model considered the world's first modern car. Maybach left the company after Daimler's death, started a company building zeppelins, then joined his son to start the Maybach car company. Together they developed super luxury cars including the DS8 Zeppelin models that competed with Rolls-Royce. A reviewer in 1933 wrote, "The Maybach Zeppelin models rank among the few cars in the international top class. They are highly luxurious, extremely lavish in their engineering and attainable only for a chosen few." It's a whopping 28 inches shorter than the departed Maybach 62, but 8.2 inches longer than a standard S-Class. As is this Maybach S600. It's a whopping 28 inches shorter than the departed Maybach 62, but since it's 8.2 inches longer than a standard S-Class, there's a very different driving experience. Two-thirds of a foot isn't much, but the Maybach is 639 pounds heavier than an S550, or 231 pounds heavier than a standard S600. From the driver's seat we could feel every additional pound and inch over those other models. It is as if Mercedes threw out the aluminum and steel and chiseled this sedan from basalt. We've driven scanty few cars where we've been genuinely glad for blind-spot detection and 360-degree cameras – this is one of them. The Maybach's wheelbase is four inches longer than that of a Bentley Mulsanne, even though the overall car is almost five inches shorter than the Big B. That long wheelbase translates into tranquil steering response – the S550, S600, and Maybach S600 all have the same 2.3 turns-to-lock, but this sedan feels like it takes more effort. It even looks heavy.