Hi! Cars Barcelona shown a ferrari enzo at 2 of December at Barcelona to members of club ferrari Catalunya and to costumers of Cars Barcelona. At the same day that Cars Barcelona shown the ferrari 612 scaglietti, a happy owner turn the key of the enzo for first time.
I do not live in Barcelona, but I suggest you to try to contact Ferrari's Spain official distributor and Ferrari Spain Club, Testarrosa Cars. Here is their phone number +34 91 5224301 Alberto might help you more, he knows more about Barcelona events than me. - Julio.
I found the info of the company who organizes the event CARS BARCELONA, S.A. Passeig Manuel Girona nº 49 08034 - Barcelona Teléfono: +34 93 203 29 54 Fax: +34 93 204 06 98