The worlds of Formula 1 and IndyCar, two of the most prestigious open-wheel racing series, have seen numerous drivers make the switch between them over the years. This crossover history is rich with stories of success, adaptation, and the pursuit of new challenges. Let’s take a closer look at some of the most notable drivers who have made their mark in both series.
Early Crossovers: The Pioneers
One of the earliest and most legendary figures to cross over was Jim Clark. The Scottish driver, known for his incredible talent in Formula 1, where he won two World Championships in 1963 and 1965, also made a significant impact in IndyCar. Clark won the Indianapolis 500 in 1965, becoming the first driver to achieve this feat in a rear-engine car. His success in both series set a precedent for future drivers to follow.

Mario Andretti: A True Legend
Mario Andretti is perhaps the most iconic name when it comes to crossing over between Formula 1 and IndyCar. Andretti’s career is a testament to his versatility and skill. He won the Formula 1 World Championship in 1978 with Lotus, showcasing his prowess on the global stage. However, his achievements in IndyCar are equally impressive. Andretti won the Indianapolis 500 in 1969 and secured four IndyCar championships throughout his career. His ability to excel in both series has made him a legend in the world of motorsport. Amazingly, Andretti also competed in NASCAR, winning it’s most prestigious race, the Daytona 500 in 1967.
The 1980s and 1990s: A Golden Era
The 1980s and 1990s saw several high-profile crossovers. Emerson Fittipaldi, a two-time Formula 1 World Champion, transitioned to IndyCar in the mid-1980s. He went on to win the Indianapolis 500 twice and secured the CART Championship in 1989. Another notable name from this era is Nigel Mansell. After winning the Formula 1 World Championship in 1992, Mansell moved to IndyCar and won the CART Championship in his debut season in 1993. His immediate success highlighted the adaptability and skill of drivers who could compete at the highest level in both series.
Modern Crossovers: The 2000s and Beyond
In recent years, the trend of drivers switching between Formula 1 and IndyCar has continued. Juan Pablo Montoya is a prime example. The Colombian driver had a successful stint in Formula 1, winning seven races. He then moved to IndyCar, where he won the Indianapolis 500 twice and the CART Championship in 1999. Montoya’s versatility and success in both series have cemented his legacy as one of the most adaptable drivers in motorsport history.
More recently, drivers like Romain Grosjean and Marcus Ericsson have made the switch from Formula 1 to IndyCar. Grosjean, who had a long career in Formula 1 with multiple podium finishes, joined IndyCar in 2021 and quickly became a fan favorite with his aggressive driving style and impressive performances. Ericsson, who raced in Formula 1 for several seasons, also found success in IndyCar, including a victory at the 2021 Detroit Grand Prix. And there is speculation that current IndyCar star Colton Herta is a top pick to drive for the Cadillac Formula 1 team which joins the F1 grid in 2026.
The Unique Challenges of Switching Series
Switching between Formula 1 and IndyCar is no small feat. The two series have distinct differences in terms of car design, race formats, and track types. Formula 1 cars are highly specialized machines designed for road and street circuits, while IndyCar features a mix of road courses, street circuits, and ovals. This variety requires drivers to adapt their skills and strategies to succeed.
Moreover, the cultural and logistical differences between the predominantly European-based Formula 1 and the North American-centric IndyCar add another layer of complexity. Drivers must acclimate to different team environments, fan expectations, and media landscapes.
The crossover history between Formula 1 and IndyCar is a testament to the versatility and talent of the drivers who have competed in both series. From pioneers like Jim Clark to modern stars like Romain Grosjean, these drivers have showcased their ability to adapt and excel in different racing disciplines. Mario Andretti’s legendary career stands out as a shining example of success in both worlds. As motorsport continues to evolve, we can expect to see more drivers taking on the challenge of switching between Formula 1 and IndyCar, adding new chapters to this fascinating history.