Zipcar Carsharing S.A.U. ("Avancar") - Barcelona Company Register, Volume 36388, Sheet 0083, Page No. 279168/B, Entry I, CIF (Corporate Tax ID) A-63448237, Calle Pallars 457,08019 Barcelona. Avancar is part of the Zipcar group of companies, the world's largest car sharing and car club provider. Reserve cars in Barcelona, London, Bristol, Cambridge and Oxford, plus North American Zipcar cities including New York, San Francisco and Toronto.