Run a replay and have the camera set to below-bumper height. Then you see the elevation changes of the track in exquisit detail. True for all tracks. Try it with Nordschleife - if you never haven done that before, you might be surprised.
Awsome track! Only slight problem is that Silhouette AIs have been flipping over in the last corner- the crazy hill. Sometimes they drive on 2 wheels for a bit, and sometimes they turn over completely and get DNF.