XH1 for motorsports any thoughts? thinking of pulling the trigger

Good day, all. I'm a hobbyist who has dabbled in nearly every form of photography over the last 3-4 decades, starting with Canon film. That said, I owned an EX3, XT2, and XE4. Any thoughts on the XH1 for fast-moving racing cars? I'd most likely be using the Sigma 400mm X Mount. I've shot sports before using Nikon D750, etc, so not new to sports,just Fuji for sports.