IMSA's WeatherTech Championship has experienced a surge in crowds and TV ratings over the past three decades.
However, the series faces an uncertain future due to a possible decline in car count for the premier GTP class.
The grid for sprint races is already down to eleven cars, and several manufacturers have begun hedging on their participation.
Social media has played a significant role in the series' growing popularity, with IMSA's official YouTube channel now having 1.74 million subscribers.
This growth is largely driven by online engagement, which can be a more reliable indicator of interest than traditional attendance numbers.
Despite record ticket sales at major endurance races, the announced crowds for this year's Rolex 24 at Daytona and the Mobil 1 Twelve Hours at Sebring were cited as multi-day attendance, which counts the same fans several times.
The IMSA series is taking a proactive approach to online engagement, sharing video content during races and offering live streaming internationally on its official YouTube channel.
However, the lack of comprehensive broadcast coverage for the WeatherTech Championship remains a challenge, with NBC having only 17 hours of coverage compared to NASCAR's extensive broadcasts.
As the IMSA series continues to grow in popularity, it will be crucial to address these challenges and ensure a sustainable future for the sport.
The IMSA series' popularity is a double-edged sword, as it may lead to increased manufacturer participation but also create uncertainty about the future of the sport.
