I always remember two or three classes, However when they hotlapped the track was wet and any wheel packing was done by the cars themselves. Qualifying would start out one line and widen out as the heats went on. By feature time it was usually pretty wide. If there was holes in the track, there were holes. you went around or through em, not the super groomed five time reworked tracks we have now.

If it got dusty, they threw a few bags of calcium on it.