We Finance! 2008 Mercedes-benz Gl450 4matic Awd Power Sunroof Navigation 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.

Vettel steals victory from Hamilton in Australian Grand Prix

MELBOURNE, March 25 – Sebastian Vettel made full use of the virtual safety car to sneak in front of Lewis Hamilton and hold off the frustrated champion to win Formula One's season-opening Australian Grand Prix on Sunday. The Mercedes engine's infamous 'party mode' that delivered Hamilton a blistering pole lap on Saturday could do little once Ferrari's Vettel nosed ahead when re-entering from pit-lane midway through the race at Albert Park. Pole-sitter Hamilton had appeared set to coast to victory with a clear pace advantage but the race turned on its head with the safety car, which was called after Romain Grosjean's Haas failed and rolled to a stop at turn two. In another bonus for Ferrari, Kimi Raikkonen finished third, fending off Red Bull's Daniel Ricciardo and leaving the unlucky Australian still searching for a first podium in his home race. "We got a bit lucky." Four-times world champion Vettel claimed a 48th overall win and his third in Melbourne following his victories at Albert Park last year and in 2011. "It was needless to say we got a bit lucky with the timing of the safety car," the German, who had started from third place and inherited the lead when Hamilton and Raikkonen had pitted earlier in the race, told reporters. "It's not the easiest track to pass." For Hamilton, the result was a bitter pill to swallow and had echoes of last year's race. Vettel also managed to re-enter in front of him from pit-lane in 2017 before burning away to victory while the pole-sitting Briton was blocked by traffic. Mercedes boss Toto Wolff said his team had miscalculated the margin between the cars during the safety car period. "We thought we had enough margin," he told the BBC. "It must have been a software bug in the system that caused us to get it wrong. We are digging deep now to understand where we had a problem." "I don't understand what's happened." Hamilton, who cockily spoke of "wiping the smile off" Vettel's face with his pole lap on Saturday, battled to keep positive. "Even now I don't understand what's happened," the 33-year-old told reporters. "I did everything I believe I was supposed to do." After the pit-lane setback, Hamilton drove hard to reel in Vettel and battled back after taking a slide at a corner that blew out the lead to nearly three seconds. But he finally waved the white flag in the closing laps to preserve the car for future races.

Luxury car brands scrambling to avoid a blue Christmas

DETROIT — When financial markets surge to new records, sales of luxury cars usually rise, too. Instead, October U.S. auto sales reports on Wednesday showed that a collapse in sales of luxury sedans is accelerating. Consumers have gradually shifted over to luxury sport utility vehicles from sedans in the past decade, but the trend — which has occurred in both the non-luxury and luxury sedan segments of the auto market — was particularly pronounced in October. Sales of Daimler AG's Mercedes-Benz S-Class, long a global benchmark for large, premium sedans, plunged 49 percent in October, and are down 24.8 percent for the year to date. General Motors' Cadillac brand said it sold just 779 of its CTS sedans in October. Demand for that car, designed to compete with German luxury sedans, is down nearly 33 percent for the year. "There's still a significant portion of the market that wants a car, but I'm sure there were people who preferred a horse to a car at one point." Cadillac's best-selling model this year is the XT5 compact SUV, which has more than doubled sales from a year ago. The shift within the luxury vehicle market away from sedans toward SUVs of all sizes is forcing some of the most prestigious brands to scramble to add SUV models to their lineups or boost SUV production to meet demand. "In the short term, there will be pressure to add (consumer) incentives, cut production or both," said Cox Automotive analyst Michelle Krebs. "And we just don't see an end in sight to this trend." The Dow Jones Industrial Average has been trading at all-time highs, usually a good sign for luxury sedans, but as major automakers reported new U.S. vehicle sales for October on Wednesday, sales for passenger cars continued their slide while luxury SUV and crossover sales rose again. According to Kelley Blue Book data, in 2007 luxury sedans made up 7.6 percent of U.S. new vehicle sales, while luxury SUVs made up 4.2 percent. Through September this year, luxury SUVs made up just over 7 percent of the market, compared with 4.9 percent for luxury sedans. In the short term, luxury brands could use holiday season sales promotions to clear slow-selling sedans off dealer lots, analysts said. Toyota's Lexus brand said on Wednesday it will launch its "December to Remember" year-end sales promotion for the 18th straight year.