Washed, Autoglym super resin polish and then a coat of Muc-Off Uber Wax. Not too bad a finish, I thinks. Should I put a coat of Autoglym sealer on it now.....
You only put a sealant on before a wax, as you have waxed it there is no need to do anything else..
Normal order should be a full decontamination I.e tar&glue remover-fallout remover-wash n dry then clay wash n dry again followed by AG SRP - sealant - wax.
And get yourself some quality wax seeing as your driving a beast and budget isn't a problem..
try swissvax or Mitchell and king they do some of the best winter waxes available or even old school waxes such as Collinite or bilt hamber