2009 - Audi R8 on 2040-cars

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Notes and notations on the 2014 Rolex 24 at Daytona [w/video]

This year is the 52nd edition of the Daytona 24 Hours. The 2014 Rolex 24 at Daytona is also the first race of the year in the brand new TUDOR United SportsCar Championship (TUSCC) With the merger of the American Le Mans Series and Grand-Am Rolex Sports Car Series rewriting and revising the rules of American sports car racing right up until yesterday, we've made the journey to an intermittently wet and constantly freezing Daytona Beach, Florida with Audi to watch the new R8 LMS and every other competitor explore the limits of those rules on the track.
With a ton to cover - and a couple of videos below to watch, including some slo-mo qualifying footage and a hot lap in an R8 LMS - let's not waste time with chit-chat, eh?
Quick things to know about the classes and the leader-light system:

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.

ABT Sportsline coming to US, premiering AS6 at SEMA

ABT Sportsline, known as ABT Tuning from its founding in 1967 until 1991, is a German aftermarket parts and tuning company that has focused on enhancing Volkswagens and Audis since the VW GTI bowed in 1978 (in Europe, at least) and races competitively in DTM (Germany's touring car racing series). The company has kept its roots in Europe for all of these years, but will debut the AS6, based on the Audi A6, at the Specialty Equipment Market Association (SEMA) in a couple weeks before opening up shop in Los Angeles in early 2014.
ABT focused on making the AS6 a balanced package by increasing engine output, tuning the suspension, giving it understated style and improving the brakes. Details are light, but the AS6's 3.0-liter diesel V6 makes 286 horsepower, a 41-hp increase over stock. Not paying attention yet? Torque jumps from 369 pound-feet to 500 lb-ft, endowing the Audi with a lot of much-appreciated low-rpm grunt. The springs are swapped out for a set of ABT units, and the body kit adds front and rear spoilers, side and rear skirts and carbon-fiber mirror covers. ABT's ER-C 20-inch wheels fit over new brakes.
We'll have more details on the car at SEMA, so stay tuned. But in the meantime, head on below to read the press release.