Home » Teams » Arsenal » Giroud, Cazorla, Mertesacker And Szczęsny Try Out The New Citroën Grand C4 Giroud, Cazorla, Mertesacker And Szczęsny Try Out The New Citroën Grand C4 January 21, 2014 by Dinesh V Arsenal stars Giroud, Cazorla, Mertesacker and Szczęsny test the new Citroën’s Grand C4 Picasso. Citroen are Arsenal’s official automotive partner. http://www.youtube.com/watch?v=Ab7_6KlXCJQ