Clean Carfax Excellent Condition Low Miles Convertible 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.

Mercedes G500 4x4 rumbles into view

Mercedes keeps raising the bar with the G-Class: just when you think the legendary Gelandewagen couldn't get any more hardcore, it mashes the throttle and does exactly that, plowing through a bank of snow, sand, hell or high water in the process. What you see here is the latest. It's called the G500 4x42. Aside from the various engine specs, the G-Class has been offered in a number of body-styles. Right around the same time that the two-door convertible was discontinued, Benz rolled out the indomitable G63 AMG 6x6 – a half-million-dollar, six-wheeled monster truck powered by Affalterbach's 5.5-liter twin-turbo V8. Evidently enough people liked the idea but didn't see the point in that extra set of wheels, so Mercedes has toned it down – just a little – but kept the high-riding suspension. The result is the truck we've seen testing a couple of times now in a bright shade of Hulk green, and which is now just about ready for its debut. On the scale of extreme G-Wagens, it slots in between the standard model and the 6x6, keeping the jacked-up suspension and giant wheels, but losing the extra axle. The G500 moniker also indicates that it'll at least be available with the 382-horsepower, naturally aspirated, non-AMG version of the 5.5-liter V8 that we'd know as the G550. Just how much of a premium Benz will charge for the beefed-up version, we don't know, as further details are set to be released next week ahead of a likely debut in Geneva. But hopefully it'll be closer to the $115k it gets for the standard version than the $500+k the 6x6 goes for.

Coronavirus blues, and the 2021 Hyundai Elantra debuts | Autoblog Podcast #619

In this week's Autoblog Podcast, Editor-in-Chief Greg Migliore is joined by Senior Editor, Green, John Beltz Snyder and News Editor Joel Stocksdale. Get a behind-the-scenes look at life for Autobloggers during the coronavirus outbreak, as they talk about how it's not only affecting the automotive industry at large, but the people who cover it as well. Amidst the chaos, Hyundai unveiled the 2021 Elantra, and out editors opine about the new small sedan. They briefly discuss what cars they'd want to drive cross-country if they had a flight that had been canceled, before talking about the cars they've actually been driving, including the Mercedes-Benz GLS 580, Jeep Renegade and Lincoln Corsair. Finally, they reach into the mailbag and help a listener pick a new car. Autoblog Podcast #619 Get The Podcast iTunes – Subscribe to the Autoblog Podcast in iTunes RSS – Add the Autoblog Podcast feed to your RSS aggregator MP3 – Download the MP3 directly Rundown The coronavirus is affecting the auto industry, and those who obsessively cover it 2021 Hyundai Elantra has been revealed Poll: Your flight's canceled. What car do you drive cross-country? 2020 Chevy Corvette orders end Cars we're driving: 2020 Mercedes-Benz GLS 580 2020 Jeep Renegade 2020 Lincoln Corsair Spend My Money Feedback Email – Podcast@Autoblog.com Review the show on iTunes Related Video: