You'll get a lot of different responses on this. Probably the best concours wax is Zaino and P21s. If you go to www.gurureports.com they are known for their testing of waxes and those 2 usually come out on top. I have jet black and use P21s---it's so easy to take on and off. Zaino has a few steps involved so if you have time to do all of them then that is pretty decent as well. P21s is a pure carnuba and Zaino is a polymer. There is a difference between concours waxes and what you get at Autozone.