I’m watching Episode 4, which is in fact the fourth episode of this first season, and SPOILER ALERT, it isn’t any better than the previous three. It is like The Grand Tour is a Top Gear cover band; it is supposed to be an homage to the original, but every member of the band is more a caricature of the band member they’re imitating and the whole thing seems exaggerated.
EDIT: To clarify, even though The Grand Tour features the same three hosts as Top Gear, they are a cover band because they are not presenting any new material. They are touring on their old library. That is what makes them a cover band.