The Grand Prix canopy uses vertical uprights to support the rafters making it possible to project a great distance from the side of the trailer, creating a large covered work or merchandising space.
Full-length fabric sidewalls are used to enclose the perimeter of the canopy for privacy and weather protection. This style can be made to extend beyond the length of the trailer in both directions.
Common projections are 20-feet from side of trailer and projections up to 30-feet are possible. The Grand Prix is primarily seen on semi-trailers.