black is a hard color to buff I could spend a day buffing and it still won`t be perfect. are the scratches white or can you see primer in the scratches , theres scratche I was able to get out in black colored vehicles I didn`t think I could by buffing , you have to melt the clear coat down a bit but be carefull you don`t want to burn through I`ve buffed lots of vehicles in my time years ago now my hands and arms are killing me from doing that and bodywork for over 15yrs . as for touch ups I use car doctor they give you a base coat which matches perfect for my color titanium plus the clear coat you put on after. and they give you some fine touch up sticksto plus instructions all depends how much time you want to spend touching up

__________________
2003 bmw x5 3.0i ,219000km build date 2003-08-18