Louis Foster is a British racing driver who currently competes in the NTT IndyCar Series with Rahal Letterman Lanigan Racing . A rising star in motorsports, Foster won the 2024 Indy NXT (Indy Lights) championship and previously clinched the 2022 Indy Pro 2000 title, dominating two levels of the junior formula ladder . He made his IndyCar debut in 2025 and went on to earn IndyCar Rookie of the Year honors that season . Foster’s quick ascent – combined with success in European Formula 3 – has marked him as one of the most promising young drivers in open-wheel racing.