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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.

2015 Audi Q7 spotted with a blurry first look

Here's the good news: we finally have visual evidence of the upcoming and all-new 2015 Audi Q7 luxury SUV. A set of photographs show that Audi has been putting the SUV through its paces, with an eye towards an on-sale date sometime late next year.
The bad news is that it was not one of our usual clear-lensed spy photographers that captured these first images, but rather a sycophantic follower of our friends at CarPix. The resulting images are a lot lower resolution than we've come to expect, and there are far fewer angles from which to judge the car.
Still, we can make out the nose of the new Q7 is a bit flatter and wider than the rounded affair of the current car, and wears similar swoopy LED headlights as are found in the rest of the Audi range. We expect the overall dimensions of the 2015 Q7 to stay about the same as the existing model, but rumor has it that the SUV could be 800 to 900 pounds lighter in the next generation.

Ken Block and friends race light in silly-beautiful Castrol commercial

How does one make fast, loud, drifting cars better? Well, you can add more fast, loud, drifting cars or you can add lasers. Either or, really. In this case, Castrol did the right thing and added both, creating a highly stylized commercial for its Edge Titanium motor oil starring South African racer Adrian Zaugg, BMW factory driver Augusto Farfus, Audi DTM and Le Mans staple Mike Rockenfeller and some bloke named Ken Block.
Their cars? No surprise, but Block is in his Ford Fiesta GRC, while Zaugg samples a Lamborghini Aventador and Farfus and Rockenfeller drive along party lines, with a BMW M4 and an Audi R8, respectively. And those cars look good, too, thanks to the creative light and laser work on display.
Take a look below for the video from Castrol.