Why Hamilton changed his mind about racing in F1 after 40

Hamilton has often joked that he does not want to be the oldest driver on the grid, embracing the continued contract extensions for Fernando Alonso, who at 41 is preparing to keep on racing for at least a few more years.

More seriously, Hamilton has always vowed that he would not want to keep on racing until he is totally burnt out, instead wishing to bow out when he is still fresh and has the energy to focus on other projects. Mission 44, his charity dedicated…