2010 Audi S5 Prestige Coupe -- Fully Loaded Heart-stopper on 2040-cars

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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's next-gen "matrix beam lighting system" under threat from Washington

Automotive News reports Audi may have a hard road ahead of it when it comes to convincing federal regulators to allow the company's new matrix beam lighting. The system uses small cameras to detect other vehicles on the road and darkens specific elements of the high-beam pattern to provide maximum nighttime visibility without blinding other drivers. Audi has been displaying this technology on its concept cars for a couple of years now (including the Crosslane Coupe Concept shown above at its 2012 Paris Motor Show reveal). Audi hopes the technology will effectively do away with the industry's current high and low beam settings, but the National Highway Traffic Safety Administration doesn't allow such a system under its current laws. Federal Motor Vehicle Safety Standard 108 specifically says headlamps are not to shine in this dynamic of a way.
Audi has asked has asked NHTSA for more clarification to determine what, if any elements of the matrix beam lighting technology can legally be used on US-specification vehicles. But American buyers may have to settle for systems that automatically dim their high beams until the rules get a bit more clarification.

Electric turbos promise big performance and efficiency gains in the near future

An electric turbo system boosts efficiency between 15 and 20 percent, according to Audi.
Turbochargers, like acoustic guitars, use moving air to create magic. And electric turbochargers, like electric guitars, provide the ability to amp up that magic to amazing new levels.