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Audi pushing DOT to allow its sequential LED turn signals [w/videos]

Still in the process of trying to get its trick LED Matrix Beam headlights legalized in the US, Audi is now trying to get its front and rear sequential LED turn signals approved by the National Highway Traffic Safety Administration. Just like its auto-dimming headlights, the sequentially illuminating turn signals don't meet NHTSA's Federal Motor Vehicle Safety Standard 108.
The problem, according to Automotive News, is that the individual lighting elements are too small to meet current US safety regulations. The rule states that each lamp should be 22 square centimeters (8.6 square inches) and the whole lighted combined area must be 50 square centimeters (19.6 square inches). In the individual sequence, Audi's lights are much smaller than that. As for the Ford Mustang, which has had sequential turn signals since 2010, this system is legal since the first lens is large enough to meet the required size, so the other two lights really aren't even necessary.
It sounds like it could be some time before we see these turn signals on Audis in the US, which is a shame because in addition to their styling bebefuts, we think they're more effective at signaling the vehicle's intended direction of travel, and they do a better job of grabbing the eye. Scroll down to watch a pair of videos showing the headlights in action on the redesigned A8/S8 as well as the recently updated R8.

Audi Sport Quattro Concept to race into Frankfurt

Audi has pulled the official wraps off its new Sport Quattro Concept, which will be debuted at the 2013 Frankfurt Motor Show. The automaker is understandably keen to draw inspiration from its classic Quattro line of automobiles, specifically the original Ur-Quattro from 1980 and the short-wheelbase Sport Quattro that took part in rally racing and set a record at the Pikes Peak Hill Climb in 1987. A massive dose of modernity comes courtesy of its 700-horsepower plug-in hybrid powertrain.
There is a clear link in the styling of the Sport Quattro Concept to Quattro coupes of the past, from the large flat surfaces that make up its C pillars to the blisters over the fenders and the basic headlamp shape (equipped as they are with Audi's Matrix LED technology). Pay special attention to the car's grille, which introduces a slightly new design language that is expected to be seen in the next generation of Audi's mainstream production models.
The interior of the Sport Quattro Concept is a refreshing departure from Audi's admittedly attractive and useable design, with sharp lines and lots of visible carbon fiber. There are seats for four occupants inside, along with a comparatively generous cargo area measuring 10.59 cubic feet.

Which would you rather have, Audi's RS5 or Mercedes' C63 AMG 507?

If you're in the market for a German sports coupe with a naturally aspirated V8, run, don't walk, to your nearest dealer because they are going to be gone very soon. European fuel economy and emissions rules have conspired to force automakers into seeking forced-induction mills. Motor Trend personality Jonny Lieberman is hosting the retirement party in the latest Head 2 Head video, where he takes on the 2014 Audi RS5 and 2014 Mercedes-Benz C63 AMG Edition 507 to decide which is the ultimate Teutonic V8.
To make the decision harder, Lieberman challenges the duo on the first soaking wet roads that Southern California has seen in ages. It forces the coupes to confront some of the actual weather that the rest of the country encounters regularly and serves to even the playing field somewhat between the charismatic rear-drive Mercedes-Benz and the all-wheel drive Audi.
It really is the end of an era for these coupes. The next Audi RS4 is rumored to switch to a twin-turbo V6, and while Mercedes won't officially admit it, the next C-Class AMG will likely switch to a 4.0-liter twin-turbo V8. And we already know the next BMW M3/M4 will rely on a 425-horsepower, 3.0-liter inline-six. Let's enjoy these eight-cylinder German giants while we can, and scroll down to watch the video.