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Is the Audi R8 E-Tron project back on again?

If you ask Audi about its R8 E-Tron prototype, the all-electric two-seater that was first shown at the 2009 Frankfurt Motor Show, the automaker will tell you that its development program is on hold. Yet, as we reported in January, limited production of the combustion-free coupe may be moving forward... information still officially unconfirmed by the automaker.
New images of the electrified R8 undergoing winter testing in Europe have emerged (above and in our gallery), and the car has been spotted running in Spain as well. Both sightings support reports that the E-Tron, with its 150-mile battery range and 8:09 Nürburgring time, may be back in business. Does the program have a green light, or is Audi merely trying to take some of the thunder from the BMW i8?
Whatever the case, if the R8 E-Tron does eventually make it into showrooms - and we are now led to believe it will - expect production volume to be very low. Assuming it doesn't get shelved again, of course.

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.

2016 Audi A8 L 4.0T Sport bridges the gap to S8

Want to get your hands on an Audi S8, but can't quite make the stretch? You may be interested, then, in the newest addition to the A8 family. Because it just may be the next best thing. As the moniker suggests, the 2016 Audi A8 L 4.0T Sport packs a similar 4.0-liter twin-turbo V8 to the one in the S8 (and the Bentley Continental GT for that matter). But instead of 520 horsepower, it's tuned to produce a somewhat more modest 450. That's also less than the 500 hp offered in the W12 model, but then the V8 engine is a fair bit lighter, and it produces 15 more horses than the previous 4.0T model. Along with the upgraded engine comes a sportier look, with larger air intakes at the front, more sculpted side sills, and 20-inch (or available 21-inch) alloys. It also comes standard with the Executive and Luxury packages, complimented by diamond-quilt stitching, and a headliner upholstered in Alcantara with a panoramic sunroof. Of course, it's also priced a fair bit lower than the aforementioned more powerful versions: $90,500 (plus $925 destination) is a relative bargain compared to the $114,900 commanded by the S8 and $137,900 for the A8 L W12. Audi has yet to release performance figures, but we'd expect it to drop a tenth or so off the 4.4-second 0-60 sprint achieved by the previous, 435-hp model. Those looking for more power than the S8, not less, may still hold out hope for the S8 Plus with its 605 hp to make its way to US showrooms. Related Video: Audi introduces 2016 A8 L 4.0T Sport model October 26, 2015 | HERNDON, Virginia - New Audi A8 L 4.0T Sport model achieves 450 hp through an enhanced 4.0T twin turbo V8 - Sport style exterior with muscular front fascia creates a striking presence on the road - Interior features panoramic sunroof, acoustic glazing on windows and Alcantara headline Featuring more power and enhanced luxury inside and out, the Audi A8 L 4.0T Sport model enters the Audi lineup for 2016. The variant of the Audi A8 flagship sedan boasts an enhanced 4.0T twin turbo V8 engine achieving an impressive 450 hp, an increase of 15 hp from the previous 4.0T model. The Sport model also includes a muscular front fascia with larger air intakes for a more commanding presence on the road. The bumper of the A8 L 4.0T Sport has been lowered for a more performance-oriented look and the sides of the sedan have been given more prominent rocker panels to give the vehicle a wider stance.