The Parc des Expositions car parks are located at doors F and R. As the number of places are limited, here are some solutions allowing you to park near the Porte de Versailles.
Private Car Parks
The applications offer you to book for a few hours, several days or more, a private parking with a rate more attractive than a car park in the street.
Public car parks
The application allows you to anticipate the reservation of a car park space at the best price.
You can book your camping-car park here : https://www.parkingsdeparis.com/reservation-campingcar-carte.php