This whole arc is amazing. Gyro didn't really change, as Ringo said, he's still a 'conformist', but that doesn't mean that he didn't have the conviction to kill Ringo. I think that validates his place as a capable racer who has the ability to win the race just as much as the others. But honestly, when he said "welcome to true man's land" (or something like that) I FELT that. Ok but jokes aside, it really was like a confirmation of how far Gyro's gotten. And when Gyro got a flashback of what his father would have thought was best, I just couldnt help thinking that he unconsciously has 'what his father would do' ingrained in him, all while opposing that very thing.
Ringo is one of my favourite weird villain so far. He also reminds me of Dio's followers, in that he followed F.V because he 'saved him', but aside from that he is so driven, yet not by anything concrete (other than liking one-on-one duels I guess lol) but his strange ideal of a True Mans World is so strong and compelling that's it's hard not to get invested. Anyway, best arc so far! I really dont know it it can get any better than this, and I mean that in the best way