I picked up a black 03 A4 avant, the paint work which seems a little flat.
I have used a t cut, a black t cut and then a finishing polish by hand. It has improved the colour slightly but not much and tips, hints etc?
I have just purchased one of these,
PROFESSIONAL CAR POLISHER BUFFER SANDER MACHINE | eBay UK
What polishing compound do you guys recommend to get rid of light swirl marks and scratches etc?