Louis is an Indycar driver with Rahal Letterman Lanigan Racing.
 
Louis started karting at a young age in the UK and had a very successful junior career in Formula 4 and Formula 3 before moving to the USA at the end of 2021 with the aim of reaching Indycar. 
 
In 2022 Louis won the Indy PRO Championship, making his debut on Ovals and Street Circuits along the way, and he progressed to Indy NXT with Andretti Global, dominating the series and taking the Championship in 2024.
 
2025 saw Louis make his debut in Indycar with RLL finishing the season as Rookie of the Year and taking a very impressive pole position at Road America.  Following his rookie Indycar season Louis signed an extended contract with RLL and will race for them in 2026 and beyond.