I detail my own cars, so I spent a fair amount of time cleaning the inside completely. Went to one of those car washes with the free vacuums and went over every inch. Used some cleaner and then hit every surface with aerospace 303. Looked great on the inside. I don’t know that I made any extra money on it, but the guy who bought it kept making statements about how it was in great shape. He was the first one to see it and offered a fair price. I’ll do that again if I sell private party.