NASCAR Racing: green #80 side panel of race car, charlotte motor speedway, nascar busch series

Question
I am going to try to be more specific here, I don't know anything about race cars, I've obtained this side panel from someone who use to work at Charlotte motor speedway. But there is also a local race track here that it may have come from. . I am trying to find out if this was a NASCAR. It's green in color w/ a white 80. I have pictures if you can help.  

Answer
Like I said, I deal mainly in NASCAR Nextel Cup racing. As far as I know that is NOT a Nextel Cup panel. There may have been a NASCAR Busch series car that sported that number but I do not know for sure. As for any other local series, I have absolutely no idea.