Leave Le Grand Coudray and turn left onto the D48 and follow the road to the crossroads, turn right. Pass through Les Chamues toward Marselles les Aubigny. At the T junction turn right, taking the road into Jouet sur l'Aubois.
In the centre of Jouet sur l'Aubois turn left toward Cours les Barres. Stay on this road through Cours les Barres following the direction of Cuffy.
At the roundabout take the second exit (straight over), once you have entered Cuffy, keep ahead through the village, passing straight over 2 roundabouts until arriving at a T junction, turn left. After 100 yds turn left again towards Nevers, D976. You may at this point stay on this road and join the A77 junction 37 direction Mangy Cours.
Or, after Gimouille, take a right turn toward Aglan, at Aglan turn right and head for Les Pommais, and then Les Pitaux and then Magny Cours village, here you will see signs for the Circuit.
When there are major events on it is quicker and more scenic to take the back roads but have a care, the roads are narrow, with lots of bends and tractors!
You can also take the road to La Charite and join the A77 at junction 28, reverse the instructions that are here