Tanner Foust was using the Las Vegas Convention center like a drifting course this year at SEMA

notice in the upper left hand corner of the above photo is a small helicopter

 The tall guy unfolding himself out of the Ford Fiesta is Tim Duncan from the San Antonio Spurs NBA team

below is a crowd shot to show how many people were hanging around every time they fired up the drift cars

video from http://www.fiestafaction.com/forums/fiesta-buzz/36302-tanner-foust-tearing-up-sema.html