The dirt cleanup will depend on the track. Tracks that are more of a clay aren't bad, but one I raced at around here was some kind of Mississippi River gumbo and it would take hours to clean up my street stock. I would usually leave there with at least 30 pounds of that substance stuck to my car, even after scraping at the track. It was like some kind of black Elmer's glue. The track rarely dried out and had great bite, but I hated cleaning that car. I'm looking forward to clay tracks and some asphalt next year.