2010 Slk 300 Roadster White/red 22k Miles Like New In And Out Low Reserve on 2040-cars

Auto blog

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.

Geely wants to be a tech-sharing 'friend' of Daimler in $9B bet

Chinese carmaker Geely has built up an almost 10-percent stake in Daimler in a $9 billion bet by its chairman that he can access the Mercedes-Benz owner's technology in the growing battle for the future of automotives. The purchase by Li Shufu, Geely's founder and main owner, means China's largest privately-owned automaker is now the biggest shareholder in Germany's Daimler. Geely said on Saturday there were no plans "for the time being" to raise the stake further. Instead, it will seek to forge an alliance with Daimler, which is developing electric and self-driving vehicles, to respond to the challenge from new competitors such as Tesla, Google and Uber. "No current car industry player is likely to win this battle against the invaders from outside without friends. To achieve and assert technological leadership, one has to adapt a new way of thinking in terms of sharing and combining strength. My investment in Daimler reflects this vision," Li said. "Daimler is pleased to announce that with Li Shufu it could win another long-term orientated shareholder, which is convinced by Daimler's innovation strength, strategy and future potential," the German company said in a statement. Geely officials plan to travel to Stuttgart to meet Daimler executives early next week and also hope to meet top German government officials in Berlin, two sources familiar with the matter told Reuters. The Chinese firm plans to use the meetings to underline that it intends to be a supportive long-term investor, they said. Daimler had no immediate comment on any meetings. Geely and the German economy ministry declined to comment. Chinese investors in German technology companies have tended to take a consensual approach, buying incremental stakes in companies such as robotics firms Kuka and Kion, typically after long consultation with management and other stakeholders. In November, Geely asked Daimler to issue new shares so it could buy a stake, as a way to access Mercedes-Benz technology for electric cars and trucks, including battery technology, to help Geely comply with a Chinese crackdown on pollution. But the German company turned down the offer saying it did not want to dilute existing shareholders, sources at the time told Reuters. Li changed tactics, and quietly amassed a stake of 9.69 percent worth $9 billion at Daimler's current share price.

2016 Italian Grand Prix race recap

The Italian Grand Prix at Monza is called the Temple of Power. Furthermore, the winning driver in Italy started on pole in 13 of the last 16 years, and only one driver in that time has won the Italian GP from behind the front row of the grid: Rubens Barrichello in 2002 and 2009. By this point in the current Formula 1 season (era?) we know what it means when a track emphasizes both power and pole position: Mercedes-AMG Petronas. The Silver Arrows locked out the front row with Lewis Hamilton on pole. A poor start prevented the Briton from capitalizing on the advantage, so teammate Nico Rosberg and four other drivers swept by him before the end of the second turn. Mercedes would later say a clutch issue caused Hamilton's botched start, but that didn't help the man who'd just fallen to sixth place. Rosberg got about two laps of television coverage on his way to an unbothered victory ahead of Hamilton. Ferrari made Hamilton's second-place finish easier by sticking to a two-stop strategy; both Mercedes drivers pitted once. We aren't sure why Ferrari didn't at least attempt a one-stopper once Sebastian Vettel and Kimi Raikkonen had been gifted second and third on track. A pit stop took about 23 seconds from entry to exit and Vettel finished third, six seconds behind Hamilton. Raikkonen finished fourth, another seven seconds behind Vettel. Perhaps the Scuderia's tire usage wouldn't allow longer stints, but we'll never know. Daniel Ricciardo wielded his Red Bull like a scalpel to make an impeccable pass on Valtteri Bottas in the Williams and take fifth place. Ricciardo, trailing another Italian province behind, somehow closed the gap on Bottas in just the braking zone of Turn 1, pulling alongside near the apex without locking a wheel on entry nor running wide on exit. Bottas claimed sixth ahead of Red Bull's Max Verstappen, Sergio Perez in the Force India, Felipe Massa in the second Williams, and Nico Hulkenberg in the second Force India sealing the top ten. Monza did spring a few on-track surprises. Esteban Gutierrez drove Haas F1 into Q3 for the first time this season, the Mexican setting the sixth-best time in Q2. Manor Racing planned for Monza all season, Pascal Wehrlein repaying the effort by qualifying 13th. Fernando Alonso pitted his McLaren on Lap 50 of the 53-lap race for a set of super soft Pirellis, then set the fastest lap. It's Honda's first fastest lap since 1992. The biggest moments happened off the track.