The team was founded by seven-time Formula One World Champion, Lewis Hamilton.

[1] In September 2020, Lewis Hamilton announced that he had founded his own team for the newly established Extreme E racing series.

[2] In December 2020, X44 announced that Sébastien Loeb and Cristina Gutiérrez were signed as drivers for the team in the competitions first season.

[1] Sébastien Loeb and Cristina Gutiérrez also finished the season as champions in the drivers championship.

For the 2023 season, X44 entered a partnership with British single-seater team Rodin Carlin and signed Jamaican driver Fraser McConnell to replace Loeb, alongside the returning Gutiérrez,[6] and Stephanie Carlin as team principal.