I have washed my car so far and waxed every 2 to 3 months afterwards with a Sonax 1. I did not do any further care, so far I thought it would be optimal and I didn’t need to do it anymore. I took it as given that it was not as optimal as the paint looked. But after I looked in here several times in this forum, I think you can do better and long-lasting care. Now I also have time for it. Can someone v What do you think about the Sonax there is better? What is this doughnut? What do you need this for? I would be very grateful for a piece of advice.