No, he IS an arrogant prick.
He's also a posh, up his own arse prick.
He also thinks he's 'gangsta' and he's just not.
I hated both McLaren drivers last year to an extent (ALOLnso a lot more though).
Whenever I've seen he's just down to earth and really, really shy. Despite that, he does have confidence in his undoubted abillity.