Okay... Both of these waxes are very good. Let us not beat about the bush here, at the end of the day, if you get the prep work spot on, you are not going to notice any real differece looks wise between the waxes you use, regardless of what you spend - they leave a subtle nuance but that is it, there main job is to protect the paintwork.
I have and have used both of these waxes quite extensively, the only one I will buy again is Concourso because it is the only one for me which delivers a little something extra over the cheaper waxes on the market - and that is an additional small wettness to the finish. Its durability is good too, beading is quite loose with one layer but tightens with two - beading isn't the be all and end all though, and is not indicative of good protection or not.
Concours leaves a silvery bling nuance - its reflective, and this is its appeal, but its only a very very slight nuance at the end of the day, as with all waxes... Its good, beads very tightly at the start as well which can appeal. But I found its winter durability here in Scotland to be somewhat poor which surprised me for a wax of its value. Something like Collinite 476 would have served much better - lasted longer with looks pretty muc just as good if the prep is spot on.
