Please clean up Car Grid "Artifacts"

Every other race seems to have them, but the cars that are still on the grid - the ghosts if you will. Well, over the last few days, trolls have been using these to their advantage by hiding near them or inside them and causing wrecks at the start/finish line. We get use to them and blindly drive through them. Well after a lap or two, this happens… I’ve seen this a few times, but yesterday and today was pretty prominent