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2016 Audi R18 whooshes around Sebring to test for WEC

The 2016 Audi R18 is a radically different endurance racer than the model it replaces. The designers drape the chassis in an angular body rather than the previous curves, and the engineers added lithium-ion batteries for energy storage. Now, we get to see these big changes in motion thanks to a video of the new car testing at Sebring. Like previous iterations of Audi's diesel-fueled racers, the latest R18 is quiet around the track. It seems to sneak up on corners with just a whoosh and a whir from the powertrain. The updated design also looks a lot better in motion than in static photos. Audi had a rough time in the 2015 FIA World Endurance Championship after losing to rival Porsche both at Le Mans during the summer and in the manufacturers' standings at the end of the year. Related Video:

Audi S1 rally car races its RC counterpart

Veteran racer Mattias Ekstrom campaigns the meanest looking Audi S1 on the block in the FIA World Rallycross Championship. With a 2.0-liter turbocharged four-cylinder pumping out a claimed 600 horsepower and all-wheel drive, this little hatch can reportedly hit 60 miles per hour in a wickedly quick 1.9 seconds. While those specs are mighty impressive, they don't really matter too much for Ekstrom's latest race in the S1 against a pint-sized doppelganger in the form of an RC replica of the rallycross machine around a warehouse. Despite, the massive gulf in size and power, the two Audis appear fairly evenly matched. The RC version can't quite match the real one in outright speed but can go under obstacles that Ekstrom's S1 is forced to drive around. Check out the clip above to see which S1 makes it to the finish first. Related Gallery EKS Audi S1 Supercar News Source: Audi Deutschland via YouTubeImage Credit: Related images copyright EKS Motorsports Toys/Games Audi Hatchback Racing Vehicles Videos rc car audi s1

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.