After delving into the debate on whether stock car racing is a sport or a spectator sport, it's clear that it's actually both. It requires a high level of skill, endurance, and talent to navigate those cars at such high speeds, which cements its status as a sport. However, it's also a spectacle that draws in millions of viewers, making it a thrilling spectator sport as well. The adrenaline-pumping excitement it provides for both the participants and audiences is hard to match. So, in my view, stock car racing beautifully merges the boundaries of a sport and a spectator sport.