2012 Audi R8 5.2 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.

Notes from day one of the Rolex 24 at Daytona

We came to Daytona Beach, Florida where you can drive on the beach, gun shops outnumber doughnut shops and you can putt-putt and fish for alligators at the same place. But we're not here for any of that - we've made the trip with Audi in order to experience the Rolex 24 at Daytona, the first race in the 2013 Grand-Am season and the only 24-hour race in America.
Three teams are racing four Audi R8 Grand-Am cars - WeatherTech Racing, Rum Bum Racing and APR, which is running two cars. Shown to the world two years ago, the R8 Grand-Am is part of Audi Sport's R8 LMS customer racing program that was commenced in 2008, and ever since 2009 has been nabbing success all over the world: In four years it has taken 154 victories and 17 series titles. That is with less than 100 cars sold to customers throughout the world, and the trophies - either class wins or overall victories - have been gathered from all of the major endurance races except one: Daytona.

Audi celebrates 25 years of TDI

Nope, the diesel engine never really did go out of style for Audi. Now, the German automaker has released a video reminding the world of its persistence with the oil-burners and is commemorating the Silver Anniversary of Audi's first commitment to turbodiesels in 1989. And, yes, there are some road racers shown in the clip, so some of those bad boys actually move pretty well. Audi engineers on camera admitted to some of the early TDI engines being "slow" but still valuable for their torque and, obviously, their fuel economy relative to gas-powered engines. A bunch of tinkering later, though, and Audi says its diesels can be a legitimate "part of a performance car" and has even overcome the issue of noisiness that's often associated with diesels. The automaker made some news in these parts a few years back when its Audi A3 TDI won the 2010 Green Car of the Year at the annual LA Auto Show in late 2009, and the model even succeeded a fellow diesel (the Volkswagen Jetta TDI) to boot. Granted, diesel sales aren't nearly as popular in the US as they are in Europe. Still, Audi last year boosted its diesel sales in the US by 40 percent to 10,076, which was about a tenth of what sister company Volkswagen sold in diesels last year in the States. And things have looked even rosier this year for Audi's TDI sales. Through June, Audi diesel sales have almost quadrupled from a year earlier to more than 8,100 units. Check out the 150-second video on Audi's 25-years of TDI production below.