its Top Gear, what exactly do you want them to do?
Personally i think it could almost be split into 2 shows these days, the general road testing of super cars and normal cars with proper reviews of them and the Adventure side of things which is personally what i prefer, crossing the channel on the modified cars, the vietnam special, the polar specials, the caravan one. These are the moments that put top gear above a lot of other shows. The star in the car segment could definitely be lost, waste of time if you ask me.