The 2021 Michelin GT Challenge at VIR was a sports car race sanctioned by the International Motor Sports Association (IMSA). The race was held at Virginia International Raceway in Alton, Virginia on October 9, 2021. The race was the eleventh round of the 2021 IMSA SportsCar Championship, and the eighth round of the WeatherTech Sprint Cup.

Cooper Ian MacNeil is a retired professional American racecar driver. He most recently competed in the WeatherTech SportsCar Championship driving the No. 79 WeatherTech Racing Mercedes-Benz AMG GT3 with co-drivers Dani Juncadella, Maro Engel, and Jules Gounon. He is son of WeatherTech owner and car collector David MacNeil. Cooper has won the 24 Hours of Daytona, Petit Le Mans three times, 12 hours of Sebring twice, and has been on the podium at the 24 Hours of Le Mans three times. He has also won the SCCA Runoffs and is a 4 time Ferrari Challenge Champion.