Just finished this extremely nice 645Ci for the dealer. He has a buyer that also wanted to put a set of genuine "M" wheels and de-badge the model lettering on the trunk.
Light compounding (3M Perfect-It) with foam followed by 3M Dark Glaze got the finish error free. For wax, I used 2 products:
Pinnacle Souveran and a sample bottle (from Detail Fest) of Detailer's Pride Premium Surface Shield. What a smooth and deep finish!
With "M" wheels installed
Outside on a sunny day
I really like the DP product as a sealant. Easy on/off and the surface is super slick.
Toto