What is the most popular type of auto racing?

From my research and observations, it's clear that Formula 1 racing holds the crown as the most popular type of auto racing worldwide. Sometimes called the pinnacle of motorsports, it's revered for its high speeds, technological sophistication, and international appeal. Passionate fans from all over the globe closely follow the thrilling action, cheering for their favorite drivers and teams. This high-octane sport not only offers adrenaline-pumping excitement but also engages viewers with its strategic intricacies. So, if you're looking to dive into auto racing, Formula 1 is a great place to start.