Stilts are added, the trailer is raised off the tires, and then the rolling assembly is removed and the trailer is lowered to the parking lot. The roof signs are unfolded to a raised position
the sides are folded up, and the inner sides are lowered down
the cars are unwrapped, and the guard rails are installed
Its fixed expenses list for four weeks for his small Formula 1 circuit: reantal cost for location is € 1,900 plus electricity and water, that's € 4,200 costs. Plus traveling expenses, means this has to make € 5,500 before it becomes profitable, and that is not taking into account the cost of the trailer/ride.
http://www.lesrendezvousdelareine.com/2016/08/grand-prix-de-formule-1-en-france.html for a much more thorough gallery