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VW Group exploring F1 options, would likely wait until Ecclestone is out

The real hurdle is that Volkswagen overlord Ferdinand Piech doesn't like Bernie Ecclestone on a personal or professional level. Superbugs. They are antiobiotic-resistant bacteria and viruses, fiends that defy eradication no matter how much counteracting agent you throw at them. Reports that Audi is going to join Formula One? They are the superbugs of rumors; for five years they've been coursing through the blood of motorsport, and no amount of denials or Audi's continued non-presence in F1 has been able to make them go away. Not even a month ago we contracted another bout of it, courtesy of Auto Express, citing sources who said Audi would leave endurance racing and DTM - handing Le Mans over to Porsche, instead of the other way around - and buy either Red Bull or Toro Rosso for an entry in 2016 with an in-house powerplant. Within 24 hours of that story, Audi Sport sent the tweet, "Audi in F1? There rumors keep appearing with regularity since years. It's pure speculation again this time and without any foundation." Now, few things are impossible in F1, but lining up on the grid in 2016 is not far away from needing to be ready tomorrow, in F1 terms, which is why these announcements come long in advance. Honda, you'll recall, gave us almost two years' notice of its F1 reunion and Porsche gave us three years notice about Le Mans. A brand-new report in the BBC says that Audi is using new hire and ex-Ferrari technical director Stefano Domenicali to lead a feasibility study into an F1 program. According to that story, the real hurdle to the foray, however, is that Volkswagen Group overlord Ferdinand Piech doesn't like F1 boss Bernie Ecclestone on a personal or professional level, so one of them would need to leave his position before Audi could say yes, feasibility be damned. Since we're talking about two men who define professional longevity, that day might not come soon. The BBC story goes on to say that Martin Winterkorn, head of the VW Group management board, would like to see the group in F1, and that if it happened it would be with a "car designed and made in Germany." Ladies and gentlemen, you know where to file this one...

Audi testing long-tail version of R18 e-tron quattro for Le Mans

Race teams are always looking for ways to shave hundredths of seconds of their lap times. Case in point: Audi is making some slight changes to its prototype racecar to make it ever so much more slippery as it cuts through the air.
Debuting at the second round of the FIA World Endurance Championship at Spa on May 4, Audi will be testing a long-tail version of its R18 E-tron Quattro racecar. As its name suggests, the long-tail car gets a lengthened rear section with the goal of improving aerodynamics. The long-tail will be run alongside the standard version of the racecar as a testbed for possible changes that might be in store, heading into the 24 Hours of Le Mans.
Audi did not say how many inches were added to the racecar, but as you can see in the image above, "long-tail" definitely doesn't take on the same meaning of classic long-tail cars of the past such as the Porsche 917. More information about the car, Audi's team and even some info about the track itself can be found below.

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.