Colton Herta, transitioning from the NTT IndyCar Series, will participate in four practice sessions with the Cadillac Formula 1 team in 2026. This involvement is part of Cadillac's rookie driver requirement, which mandates that teams run a driver with no more than two race starts during practice sessions. Herta's first outing will occur at the Barcelona-Catalunya Grand Prix in mid-June, where he will take over the car from regular drivers Sergio Perez and Valtteri Bottas, who will each miss two sessions. Herta is eager to learn and contribute during these practice runs, which will coincide with his ongoing commitments in Formula 2 racing. Cadillac Team Principal Graeme Lowdon expressed optimism about Herta's role, emphasizing its importance for the team's development efforts.