Spa is still in development, so it will take some time before it's release, but when time is ready i will show some screen from this track in the WSC '89 threat. About the dirty track; it's just like Laurent did with the tiremarks on the tarmac, just a texture above the tarmac and you can add all you want (lines, startposition, dirt etc etc.). So it isn't to hard, but due to all different lines on the '89 version of Spa i have no choice than try this solution, and all works well.
Very very nice to see you around again Erwin, that's been a long time ago, way to long...
But indeed you are right, Donington is one of the possibilities. I will make a list soon when there is time for another new track (hopefully soon)
Now back on topic; this is about Laurent and his development on the editor.
Grtz