"Course de côte de Gaillon", Normandy.
The first edition of this race was in 1889.
In 1921, after Sir Thomas came at the highest point of the road at 175 km/h with his Sunbeam, the organisators decided to make stopped departures....
Where you can find 200cv din 1905 DARRACQ (200 km/h)

and many things !
10% climb on 1000 meters, stopped start.
Incredible to see 1910 or 20 cars arrive at more than 120 km/h at the top !
Some pictures for your curiosity...







