2006 Mercedes-benz Slk55 Amg Automatic 2-door Convertible Low Miles 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.

Jay Leno listens to the people, shows off still-stock 1972 Mercedes 300 SEL 6.3

Let it be known, Jay Leno is a man of the people. Long-time viewers will recall the time he walked fans of his popular video series around the various projects going on in his eponymous garage. One such vehicle was his 1972 Mercedes-Benz 300 SEL 6.3, which he'd planned on fitting with the powertrain from the awesome SLS AMG. But rather than just make the move and be done with it, Leno asked viewers whether he should restore the silver sedan or carry on with his plan to resto-mod. Well, the restoration team won, and the 6.3-liter sports sedan soldiers on unmolested. That is, of course, no bad thing, according to Leno. In his latest video, he revisits the 1972 luxury sedan, and takes it for a spin around Los Angeles. Fans of Mercedes' big-grilled 1970s styling won't want to miss this video.

Mercedes plans Audi TT fighter

With the growth in popularity of modular platforms in the auto industry, it's rapidly becoming commonplace to see a company with multiple models that look different but share a significant number of parts underneath. One such an example is Mercedes-Benz's line of compacts, including the A-Class hatchback, CLA-Class sedan, GLA-Class crossover. Two derivatives lacking from German brand's current, small-car range are a coupe and convertible, but that might be changing soon. Mercedes is hard at work on a coupe with 2+2 seating, a liftback roof and styling inspired by the AMG GT, according to Autocar. Daimler Chairman Dieter Zetsche reportedly supports the idea, too. The new two-door could be on the road as soon as 2019 to target models like the Audi TT and BMW 2 Series, and a convertible version might follow later. This little, luxury two-door would ride on Mercedes' next-gen, front-wheel-drive compact platform, according to Autocar. It reportedly allows the German company to vary a model's size more than the current version and can better adapt to hybrid powertrains. A previous report also suggested the coupe and convertible might use this improved chassis, if they got the green light. Of course, a Mercedes model is hardly complete without an AMG version, so that would also be a possibility. According to Autocar, the performance brand's 2.0-liter four-cylinder could see output pushed to 400 horsepower compared to the current 355-hp unit. Earlier rumors also indicated a more powerful version of the boosted mill might be on the way. With Autocar backing all this up only with unnamed sources, the rumors should probably be taken with a grain of salt at the moment. However, a small coupe from the brand doesn't seem entirely impossible. After all, after two-door versions of the C-,E-, and S-Class, why not a smaller one, too?