His opportunity to race came as a result of two separate injuries sustained by regular Sauber driver Gianni Morbidelli during the 1997 season. During the 1997 European Grand Prix, Fontana had gained attention for apparently blocking Jacques Villeneuve to let rival Michael Schumacher pull away from the Canadian. He attempted to enter with the Tyrrell team for 1998 but was dropped in favour for Brazilian Ricardo Rosset and with Minardi for 2000. In between his time in F1, Fontana raced in Formula Nippon. In 2010 he won the Konex Award as one of the five best Racing Drivers of the last decade in Argentina.