The radio exchanges, shared widely on social media, have left fans wondering whether the honeymoon phase between Hamilton and Ferrari is already over — just six races into the season. With Leclerc consistently ahead in qualifying and race trim, and communication issues mounting, the cracks are beginning to show.

MIAMI, Florida — You might not expect to hear sounds of optimism from a driver of Lewis Hamilton’s pedigree after an eight-place finish, as the Ferrari driver settled for in Sunday’s Miami Grand Prix. But optimism was exactly the word Hamilton used to describe his state of mind after the race.