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Audi says new 48 volt micro-hybrid system improves fuel economy, paves way for electrification

Most cars use a 12-volt system to power their electrical components. But, with more and more electric bits and bobs being added to new vehicles, a dozen volts is looking a bit weak these days. In fact, Audi says that standard 12-volt systems are being stretched "to their very limits." Enter 48 volts. If used in a car that gets 40 mpg, that would translate to around 43.5 mpg. Audi is testing a supplemental 48-volt electric system in two prototype vehicles – modified mild-hybrid versions of the A6 TDI and the RS 5 TDI – in order to add in more electric technology (an electric compressor, for example, to improve acceleration) and "convenience systems for dynamic chassis control." Audi says it has more applications in the pipeline, but the overall gist is that the German automaker sees 48 volts as an "important building block in electrification strategy." As you can see in the picture above (click to enlarge), the RS 5 TDI concept uses a li-ion battery installed in the back of the car and an alternator to provide 48 volts when the engine is off. Audi says that the 48-volt system can save up to 0.4 liters of fuel per 100 kilometers. To put that into US numbers, if used in a car that gets 40 miles per gallon today, that would translate into a bump up to around 43.5 mpg. The Advanced Lead Acid Battery Consortium (ALABC) is also working on a 48-volt system to improve fuel economy and we've got a deep dive of Audi's electric turbocharger here. Even more powerful and efficient – the new 48-volt technology from Audi Important building block in electrification strategy More voltage and more power for new technologies Scalable platform concept suitable for wide-ranging uses Ingolstadt, August 25, 2014 – Audi is to upgrade part of its vehicle electrical system from twelve to 48 volts. The move represents another technical building block for facilitating the integration of new automotive technologies while increasing the power and efficiency of its cars. "We are using the full bandwidth of electrification in our drive principles strategy. Running part of the vehicle electrical system at 48 volts plays a central role in this," commented Prof. Dr. Ulrich Hackenberg, Member of the Board of Management for Technical Development at Audi. "It enables us to make more energy available.

Next Audi R8 seen and heard in this spy video

A few weeks ago, our clandestine spy photographers brought home the first good look at the next-generation Audi R8. We were all pretty stoked.
Seemingly following the game plan of the recently shown Audi TT, the next R8 looks to be an evolutionary update on a supercar form that pretty much everyone loves.
Today, the same shooters that snapped the car in stills have delivered some pretty compelling moving pictures of the thing. Captured both in some less-than-inspiring around-town traffic situations and out on the Nürburgring, the video delivers our first taste of the new R8's auditory splendor. Well... a taste of it, anyway.

Ten of the greatest Super Bowl car commercials of all time

With an average of over 100 million viewers each year, the Super Bowl always has advertisers bringing out the big guns. And for those among us who don't know the difference between a safety and a touchback, those commercials can be one of the most compelling aspects of the annual ritual. Car companies, in particular, have a long history of making the most of the huge Super Bowl audience by debuting some of the most memorable advertisements that have ever aired on television. So, in preparation for the new batch we'll be seeing this coming Sunday, here's a collection of our favorites from the past. 10. Audi – The Godfather When Audi created this homage to the quintessential gangster movie to promote its newest sports car, the company managed to make a commercial that was simultaneously funny, a little bit disturbing, and most importantly memorable. 9. Maserati – Strike This one might start out slow, but it delivers not only with the wicked sound of the third-generation Ghibli's engine, but with an interesting message about hubris in the auto industry as well. 8. Nissan 300ZX Twin-Turbo – Dream Directed by none other than Ridley Scott (Blade Runner, Alien), this dystopian spot has centers around a narrator who explains that in his dream the bad guys are unable to catch him despite their best efforts by way of street bikes, race cars, and supersonic jets. While the twin-turbocharged 300ZX car was certainly a performance powerhouse to be reckoned with in its day, the concept and execution of this one does come off a little bit campy now – but in a good way. Then again, it is a dream, after all. 7. General Motors – Robot This one is unique in that it's genuinely depressing on a profound level. Who would've thought that the simulated suicide of a lovable, anthropomorphic car-building robot who has fallen on hard times could be such a downer? 6. Nissan – With Dad Although the debut season of its new LMP1 racer didn't exactly turn out how the team hoped it would, there's no denying that Nissan's depiction of a strained father-and-son relationship that eventually leads to redemption (and the introduction of the 2016 Maxima) tugs at the heartstrings. 5. Volkswagen – Big Day A surprisingly poignant advert, this one might be low on dialogue but it certainly gets its message across. And just as the dramatic soundtrack begins to lull the viewer into a sense of security, our expectations are upended. 4.