In the same boat with F1 and NASCAR. Love F1 in some ways, but as much as I try to care about the midfield, I just can't, and knowing a Max victory is a foregone conclusion has made me more likely to not tune in. I even finally cancelled F1TV (though that also has to do with me getting a streaming package that includes ESPN2).
As for NASCAR, I tried to watch after Ross Chastain's Martinsville comeback, but that Phoenix race was painfully dull, and the gimmicks in the name of entertainment just turn me off of it further.