Fastest average speed in a grand prix

Fastest average speed in a grand prix
Who
Michael Schumacher
What
247.585 kilometre(s) per hour
Where
Italy (Monza)
When
The fastest overall average speed for a grand prix race is 247.585 km/h (153.842 mph) by Michael Schumacher (Germany) in a Ferrari at Monza in the Italian Grand Prix on 14 September 2003.