His style is annoying, (mannerisms aside) the thing to remember is that he is making the videos for his HP Academy website, which is the for the purpose of teaching less knowledgable people stuff about how to make fast cars... so he provides a lot of context around his questions so as to not lose his intended audience. Possibly it would be better to edit in the extra context and not annoy and waste the time of the person he his interviewing.
In some of his videos he both asks questions and answers them at the same time, and leaves the poor person he is interviewing with nothing useful to add.
That car though, F***en amazing... and Andy Forrest is one clued up cookie.