Honda’s Crucial Decision: The Future of IndyCar and the Indianapolis 500
Date: October 16, 2005
Location: California Speedway, Fontana, CA
In a pivotal moment for American open-wheel racing, Honda announced its commitment to the IndyCar Series during a press conference at California Speedway, ensuring the manufacturer would continue to compete in the prestigious Indy 500. This decision came amid uncertainties surrounding the alignment of the IndyCar Series and the rival Champ Car World Series, raising questions about the future of engine supply for the sport.
Context and Background
Honda, initially weighing its options, faced the possibility of exiting the IndyCar Series to join Champ Car after a tumultuous season that began with three engine manufacturers: Chevrolet, Toyota, and Honda. Ken Ungar, then leading the series’ commercial affairs, was under significant pressure to secure at least one engine supplier for the following year.
As the press conference commenced, Robert Clarke, founding president of Honda Performance Development, made the surprising announcement: Honda would indeed remain in IndyCar. Insights from insiders suggested Honda lacked production capacity to support the entire IndyCar grid, particularly during the 33-car Indy 500.
Technical Insights
Clarke revealed a strategic collaboration with Ilmor Engineering, which had previously engineered Chevrolet engines, to address Honda’s production limitations. This partnership would enhance Honda’s capabilities and ensure competitive performance.
Clarke’s commitment stemmed from his awareness of the detrimental impact of the ongoing split in open-wheel racing. He believed a stable IndyCar Series, with the Indianapolis 500 at its heart, was essential for the sport’s future, especially against the backdrop of NASCAR’s rising popularity.
Long-term Implications
The decision to remain in IndyCar marked a turning point, stabilizing the series at a critical juncture. Clarke’s foresight proved prescient, as he sought to unite the fractured landscape of American open-wheel racing rather than fuel further division.
The atmosphere in the media room shifted from one of uncertainty to optimism. Clarke’s unwavering dedication to the fans, teams, and the sport underscored the importance of collaboration in navigating the industry’s challenges.
Reflection and Legacy
Eighteen years later, Clarke’s influence remains evident in the ongoing evolution of IndyCar. His passing on September 20, 2023, at 75, due to health issues, leaves a profound impact on the motorsports community. Clarke exemplified the essence of racing culture—a testament to his vision and commitment to the sport.
As the industry looks toward the future, the potential re-engagement of American Honda and HRC in the IndyCar series will be watched closely, recalling the crucial decision made on that October day in 2005.

