There are special waxes existing for matte finish, like swizoel opaque.
SOme time ago I read an article abot the matte finish on Merc AMG cars and there was mentioned that the cleaning etc is not that simple, esp a car wash using "normal" soap would create a "shiny" effect - means: the car will start to look like rancid butter...
In my eyes the Evora looks much better with a "normal" paint - but maybe I am a little bit tired of all the "showcars" in munich with a wrap - number one of the "most worst league" a X6 in a clay brown wrap (no kidding) (in my opinion...)
BTW: One of the first cars in munich in a military green wrap, a P 993 Cabrio with a sticker "make love not war" (driven by a woman) is back to original paint already.........which says a lot to me