I have several vehicles 1 being the '17 Q5. While the Q5 had a optional Paint sealant applied at purchase, I still use products to enhance and maintain this cars beauty. I've gotten away from wax. Instead I use a Paint Sealant known as "Klasse" that I purchase online. This product is made in Germany. For quick touch up dust,Finger print marks I use "Griots" Speed Shine. For wheel cleaning I use" Sonax".Once cleaned I put a coat of Klasse Paint sealant on the wheels to maintain their beauty and help to keep Tar from sticking. I have switched from using Cotton towels to Microfiber. Better absorption and No scratching.