2015 Audi A3 1.8t Premium on 2040-cars

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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.

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 S3 Cabriolet is a topless two-door temptress

Now that we've driven the Audi S3, we're pretty eager for it go on sale in the United States. And while we won't get the Sportback version, there's a teeny tiny chance that Audi may grace us with this new Cabriolet version that makes its debut at the Geneva Motor Show this week.
That certainly wouldn't be a shame, considering the topless S3 packs the same 290 horsepower and 280 pound-feet of torque as the sedan, all of which comes from a turbocharged, 2.0-liter inline four-cylinder engine. That folding roof mechanism adds a bit of weight to the S3 package, and thus, reaching that ever-so-special 62 miles per hour takes an extra half a second - 5.4 compared to 4.9 with the S3 sedan.
Looks-wise, we dig the aggressive little S3, though the chrome wheels of the show car are kind of throwing us off. Swap out a set of standard alloys, and we'll be good to go. Have a look in the gallery above to see the topless Audi for yourself.