2010 Mercedes-benz C-class C63 Amg 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.

An assortment of emblematic supercars is headed to auction

Auction house RM Sotheby's is giving enthusiasts the chance to bid on the supercars that they had posters of when they were kids. It's organizing a live sale in Miami, Florida, in December 2022 that's limited to 60 high-end models built between the 1970s and the 2010s. The oldest car in the catalog is a V12-powered 1974 Jaguar E-Type, though keep in mind that only 20 of the 60 available slots have been filled so far. At the other end of the spectrum, the newest model is currently a 2014 BMW M5. If your automotive tastes are firmly anchored in the 1980s, there's a wide selection of cars to choose from such as a 1989 Lamborghini Countach 25th Anniversary Edition and a 1987 Porsche 911 Turbo with a flat-nose conversion. If your heart belongs in the 1990s, RM's sale includes a 1990 Lamborghini LM 002, a 1995 Ferrari 512 M, and a 1996 Porsche 911 Turbo. Bentley models and a 2008 Mercedes-Benz SLR are among the newer classics. Carmakers weren't alone in pursuing speed, style, and extravagance in the 1980s; tuners fought hard for a piece of the pie as well, and RM's sale reflects that. Collectors will get the rare opportunity to bid on a number of pre-merger AMG models like a 1982 Mercedes-Benz 500SL 5.0 (R107), a 1987 Mercedes-Benz 560SEC 6.0 (C126) with a wide-body kit, and a 1989 Mercedes-Benz 560SEL 6.0 (W126). BMW-based Alpina models are well represented, too: RM accepted a pair of 6 Series-based 1987 B7 coupes and a 3 Series-based B6 2.8.  There are several slots left so it's not too late to submit your car. If you're a buyer, plan on being in Miami on December 9 and 10, 2022. We suggest clearing up space in your garage first: every car is offered with no reserve, so the selling price will be the highest bid. Related Video This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. Featured Gallery RM Sotheby's supercar sale in Miami View 44 Photos Ferrari Jaguar Mercedes-Benz Porsche Auctions Luxury Supercars Classics

Artist imagines eerie world where cars have no wheels

The wheel ranks right up there with the telescope and four-slice toaster in the pantheon of inventions that have moved humankind forward. But what if a circle in three dimensions had never occurred to anyone, and we all had just moved on without it? Perhaps we'd be driving around in Lucas Motors Landspeeders with anti-gravity engines. Or maybe we'd have the same cars we do today, just without wheels.
That's the thought experiment that seems to have led French photographer Renaud Marion to create his six-image series called Air Drive. The shots depict cars throughout many eras of motoring that look normal except for one thing: they have no wheels. The models used include a Jaguar XK120, Cadillac DeVille (shown above), Chevrolet El Camino and Camaro, and Mercedes-Benz SL and 300 roadsters.
Perhaps one day when our future becomes our past, you'll be able to walk the street and see with your own eyes the rust and patina of age on our nation's fleet of floating cars. Until then, Monsieur Marion's photographs will have to do.