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Next Audi R8 caught on the 'Ring

Now that we're kinda-sorta-maybe-slowly thawing out from this horrible winter, automakers are moving away from the harsh extremes of winter testing and taking their new wares for laps around the infamous Nürburgring. What better way to kick off the sports car testing season than some fresh shots of the next-generation Audi R8 supercar?
Despite the slick coupe's shape not changing too much, details under that camouflage reveal styling elements that are more squared off and angular - similar to what Audi has done with its 2015 TT coupe. Don't be fooled by those square taillamp holes in the camo out back, either - look closely and you'll see a stylish LED lamp design.
Expect some 100 to 200 pounds to be shaved off the next R8's curb weight.

2014 Audi S1 is a little hatch hiding huge power [w/video]

The Audi S1 takes the Four Rings' high performance brand to its smallest model yet. Offered in three- and five-door forms (pictured above), the S1 is a subcompact hot hatch that seems specially suited for Europe's dense cities and tight roads.
The S1 follows the rest of the Audi S vehicle lineup with a very understated design. It maintains the looks of the standard car, but the larger air dam, 17-inch wheels and side sills tells viewers that something mean is lurking under the surface as well. It packs the Volkswagen Group's ubiquitous 2.0 TFSI four-cylinder, tuned here to produce 228 horsepower and 279 pound-feet with a six-speed manual transmission and all-wheel drive, and it is enough to get it to 62 miles per hour in less than six seconds for either body style and to a top speed of 155 mph. Handling is aided by a more sophisticated four-link independent suspension to replace the standard A1's torsion beam setup.
They come in just two colors for now - Vegas Yellow or Sepang Blue - and are hitting European roads later this spring. UK prices start at £24,900 ($41,518) for the three-door and £25,630 ($42,735) for the five-door.

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.