A 53.902 km circuit used in 1906 for the Coupe des Voiturettes. It was located to the south of Rambouillet, taking what is now the D936 where it joins the N10. It went through La Hunière and Sonchamp on the way to St. Arnoult-en-Yvelines, before turning on to what is now the D988 to Ablis, and then taking the N10 back to the start.
In 1902, Willie Vanderbilt (driving a Mors) used the D988 between St.Arnoult-en-Yvelines and Ablis for record attempts. Henry Fournier (also in 1902 in a Mors) used the D836 between St. Arnoult-en-Yvelines and Dourdan, which can also be seen on the above map.