I use Megs Scratch X for fine scratches and swirls. Takes most out as long as you can't feel it with your nail. The best way, I think as I've never tried it but going to get it done, is to machine polish the car! Say away from t-cut as it will damage the paintwork around the scratch. Once you have tried to remove it with what ever product you decide make sure you seal the area again! Best of luck. James or Gaz are your men for this stuff!