I love the grand tour, but especially in the last few specials you can tell they're getting pretty old to be doing the kind of traveling and shenanigans that is expected of them. With clarksons farm, our man in x and the few youtube channels they have I'm ready for them to move on and embrace new avenues of creativity.
As fun as they are to watch, I would fully support them retiring if they wanted. I imagine retirement for them just means doing whatever little side projects they think will be fun.
Oddly I liked their normal track and news segments talking about all different types of cars and then handing them over to Abby/Stig to test. It seemed everyone else wanted them in an exotic locale doing stupid things.
Yeah I never really cared for the celebrity segments on top gear (some were good but many didn't matter to me), but the actual news segments were always interesting, and seeing how the cars performed and putting their times up on a wall for comparison was cool.
The specials were always fun but lately it has felt like they've been lackluster. The boat one was the last one that really stood out to me.