In the Corvette C7.R Limited Series, I enjoyed the 12-lapper at Melbourne so much I ran it several times before finishing the Series (at which time I couldn't get back to it).  Just to make it more interesting, I came up with a points system to help improve my clean racing.

It's simple:

• Pass a car cleanly, add one point (you start at zero).
• Touch a car - minus one point.
• Touch a wall - minus one point.

It was a bit surprising how difficult it was at first to get into double-digit points, even in that 12-lapper, but by the third run, my driving had improved significantly.  Also, having to stay behind cars longer than usual in order to pass cleanly makes it more of a challenge to win if the event has fewer laps.

It's kinda fun - give it a try.