On 17 October 2007 , Companhia Paulista de Trens Metropolitanos ( CPTM ) opened a new station of the Line C , AutÃ dromo , near the racing circuit . On October 17 , 2007 , Companhia Paulista de Trens Metropolitanos ( CPTM ) began to operate the new station of the Line C , AutÃ dromo , near the circuit .