I wasted time watching it just to see the Lambo's, sorry I'm a sucker for Lamborghini's. Over 37 years on this planet still my favorite car.
Yeah the hosts suck, forced dialogue, no sense of history or interpersonal relationships between them. Yeah the format was dull, but you can say they totally ripped the camera shots and overall feel of the cinematography.
All that said, I feel bad saying this, I agree with OP a tiny bit. Their test track is much more interesting, and looks like more of a realistic challenge to a car's performance. Don't get me wrong, there's a point for BBC's track, and the history of it almost denies the chance of a redesign... Gambon's alone makes it something I want to watch. Anyway, the USA track is quite a good track, I'd like to see some of the BBC Top Gear cars go around it and see how they match up VS the BBC power lap times.