Craving for Speed

I crave for speed on my A4. I did a number of times on the highway going 110-120 mph, but only for a few seconds before I have to ease off my right foot. Got caught by the cops few times when I was not doing as fast. Once, I even asked the officer how fast I was on his radar gun. The closest race track I can pay to use is 150 miles away and the events are only a few times per year. I wish there were highway without speed limit.
Let me know what you do to cure your craving for speed.

quickly accelerating at random moments...

track days fulfill my need :) road courses will satisfy you....travel.

try look for scca races with audis and they will bring you to tracks all you have to do is pay a little money per year and then sign up