MSO Atlantic Blue ... is a MSO bespoke color of which to my knowledge only 6 cars have been made by McLaren so far ... 3 720s (2 coupes one spider) and 3 Sennas ... maybe in the meantime more but I never saw any other pic or hashtag hinting for more cars on it ...Wow!!! Which gorgeous blue is that??
first car to carry it was the 2018 Geneva show car (the other 720s coupe) which a friend of mine owns now and the other was (still rumors) Mike Flewitts personal Senna...
Than there is @Rarity 720s Spider which you probably find the most pictures of in the US and 2 more Sennas (1 in NA and 1 im Germany) ...