Did you watch the video from a few posts above? The car is doing donuts on what I'd guess to be Congress Ave. with the Capitol Building in the background (haven't been to Austin since the 70's so I may not have the geography exactly right).They had hoped to drive it in town but didn't get the red tape filed in proper time (and I guess the city wasn't feeling that they should cater to them).
Here's another video of Coulthard on the streets of Austin: http://www.speedsportlife.com/2011/0...-of-austin-tx/
And finally, the website for the circuit, where you can get real information on the track:
http://circuitoftheamericas.com/