After dipping in and out of a few threads about the speeds managed in an S3... I wondered ( obviously done in a legal and safe place ) what was the top speed hit in an S3? and how long did it take to reach the speed? Ive only done a couple of track days so not realy pushed the straight line speed of my car probably only managed 120mph or something. Also how accurate is the Dash speedo against GPS about say 100mph?