White scratch on a black car
 

I just noticed a vertical white scratch on my black 2018 A5 convertible. Does anyone have an idea on how to remove it without taking it to a body shop? Any products you would recommend? Without scratching the adjacent paint?
https://cimg7.ibsrv.net/gimg/www.aud...2b9fb8f690.jpg
https://cimg4.ibsrv.net/gimg/www.aud...2e3ffd30ed.jpg