Audi Prototype TDI Twin Turbo Electric? Written by Ruckus on September 25, 2012 ~ Posted in Audi, Technical, Video Yes, that’s right. Audi is about to unleash a Diesel BiTurbo Electric into the wild blue yonder. The main turbo is driven conventionally by the exhaust with it’s sibling relying purely on electric. Check out the video to see what I mean. Sick!