Answer:
185.981 mph
Aside from being a two-time winner of the Indianapolis 500, Luyendyk holds the IMS one- and four-lap speed records, and his average speed over 500 miles of 185.981 mph in 1990 is a mark that is unlikely to ever be broken.
Step-by-step explanation:
185.981 mph
Aside from being a two-time winner of the Indianapolis 500, Luyendyk holds the IMS one- and four-lap speed records, and his average speed over 500 miles of 185.981 mph in 1990 is a mark that is unlikely to ever be broken.
