“Hear me ROAR…!” Learn details about how and why an engine fire-up is performed and listen to the sound of the engine being boosted from idle to some 10,000 rpm! The race car in this video has left Hinwil, Switzerland, a few hours ago and is now on its way to Sochi, Russia, where Sergey Sirotkin will jump in for our demo drive on 27th September 2013.