As a motorsport enthusiast, I've always been curious about which one is the fastest. After some research, I discovered that the fastest motorsport is Formula 1 racing. These high-speed machines can reach speeds of over 220 mph, making it the pinnacle of auto racing. The combination of advanced engineering, skilled drivers, and high-speed circuits makes it an adrenaline-pumping experience for both participants and fans. In conclusion, if speed is what you're after, look no further than the exhilarating world of Formula 1 racing.