Easy test to do... Wet your finger and wipe it over the scratch, if it goes, then it will come out with compound / T-Cut and a good polish. Otherwise it's a little more difficult... You 'can' use very fine wet and dry, but I would NOT recomend this if your not confident in your skills. I have done some Wet & Dry on my scratches and they have gone, BUT you need to be so careful.. For a black car, get some of the T-Cut black ploish and use that, it may not remove the scratches, but could hide them from view. (however you willl need to de everytime you wash your car).
