Drivers have various reasons for choosing their numbers. Many opt to keep the numbers they had during their karting days, while others choose numbers with personal significance. For example, Jenson Button selected 22, the number he used during his championship-winning year in 2009, and Kimi Räikkönen chose 7, which he used while racing for Lotus the year before. Max Verstappen races with the number 1 as the reigning World Champion, while Lewis Hamilton has a personal attachment to the number 44, which he has used throughout his career.
