2007 Mercedes-benz S550 on 2040-cars

Auto blog

Maybach crossover looking more likely, Smart crossover possible

Mercedes-Benz executives are still making positive noises about the chances of a Mercedes-Maybach SUV. Following Daimler CEO Dieter Zetsche's answer of "most likely" at the Geneva Motor Show, Mercedes Cars head of sales and marketing Ola Kallenius told Autocar that a Maybach SUV based on the next-generation GLS is "the more likely scenario." That's the same Kallenius that told Automotive News just last November that "we have no plans for it [a Maybach SUV]." It's a subtle shift, to be sure, but it's still a shift. The GLS – introduced as the latest-generation GL in 2013 – is still undergoing testing for its its mid-cycle refresh, so a Maybach version is a few years off. That would, coincidentally, give Mercedes time to see how the other super-luxe entrants are faring, and prepare its charge accordingly. Autocar expects that should it be built, it will come when the GLS shifts to the S-Class platform and most likely get the twin-turbo V12 from the Mercdes-Maybach S600 sedan, although the company's 4.0-liter twin-turbo V8 is possible if there are strong intentions for the Chinese market. Also on Stuttgart's agenda of dreams is a Smart crossover, according to the report. It could be Smart's best chance at profitably extending the range, based on the mania for tiny utes, and that would help both Daimler and the ForTwo's Renault Twingo sibling. It sounds like this is a ways off, though, due to coming up with an engineering solution for the Smart's engine packaging. Related Video:

Mercedes-AMG considering turbo fours, hybrid sixes for future performance sedans

Think of the letters AMG and you'll probably end up picturing a performance sedan with a big V8. Such has become, after all, the Mercedes turning division's calling card. But with the introduction of its 2.0-liter turbo four, AMG is working at turning that notion on its head.
The highly potent engine produces 355 horsepower and is presently installed in the A45 AMG hatchback, CLA45 AMG sedan and GLA45 AMG crossover, giving Benz's smallest family a full range of performance models. But that might not be the full extent of the high-strung four-pot's use.
Speaking with AMG boss Tobias Moers, Britain's What Car? magazine reports that Affalterbach is considering slotting the same engine into larger models, particularly performance sedans like the C-Class. As we recently reported, Mercedes is already preparing to up the power from the turbo V6 in the C400 to slot a C450 Sport in below the C63 AMG. The C450 is expected to offer around 367 horsepower where the CLA45 AMG et al pack 355, but the lighter weight of the four-cylinder engine would likely offset the truancy of those extra dozen horses. Of course such a prospect would be much further down the pipeline than the C450 Sport which is expected to arrive much sooner.

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.