The Vaillantes were built from Hommell racing cars and were inspired by the drawings of Jean Graton, author of the Michel Vaillant comics. 16 Grand Défi were built and 15 are left today. This example was bought from Christophe Collaro, who in 1999, ordered 14 Grand Défi in order to entrust them to the personalities of the "3Com Star Challenge", a tourist rally that he organizes.

On the outside, the car is in good condition. The paint in its red color has only a few defects visible in the gallery. There are a few defects on the hood nose, the left door, the rear hood and the rear plexiglass bubble. The seller indicates that a 3D scan of this one has been done for a possible reconstruction. The fiberglass body is in good condition. The exterior plastics and gaskets are in good condition, as well as the headlights. The seller indicates that the aluminum chassis is in excellent condition. He specifies that the rear hood fasteners and the rear spoiler have been reinforced with composite material and aluminum bushings.