Hard to tell from that photo. You probably ought to go to an automotive detailing shop, or a good body and paint shop and have them look at it.
Since your car looks great another thing to consider is - are you the only one who notices this rub through? There is a bunch of stuff wrong with the paint on my car, couple of rust bubbles, stone chips and scrapes on the front, couple of other paint chips here and there, there is even "orange peel" on the passenger side door from a poorly done re-spray. I could spend an hour showing you all the imperfections in my paint; however, I'm the only one who sees it. Everyone else thinks it is a brand new car and is impressed. So I just stopped worrying about it and keep it as clean and shiney as I can. Someday I am going to have the entire car re-spayed.
Since your car looks great another thing to consider is - are you the only one who notices this rub through? There is a bunch of stuff wrong with the paint on my car, couple of rust bubbles, stone chips and scrapes on the front, couple of other paint chips here and there, there is even "orange peel" on the passenger side door from a poorly done re-spray. I could spend an hour showing you all the imperfections in my paint; however, I'm the only one who sees it. Everyone else thinks it is a brand new car and is impressed. So I just stopped worrying about it and keep it as clean and shiney as I can. Someday I am going to have the entire car re-spayed.