As I'm sure you now know, The American is no longer with us for The Grand Tour season 2. You can read about that further, here.
Whether you liked him or not, the trio were forced into trying something different as obviously the BBC would, and did, stop them from using a silent driver, i.e, the Stig.
So even if you thought his character was awful, or that his anti-anything American remarks were tiresome, let's say goodbye to The American by watching his best, or worst bits. That bit's up to you.