sentences:  7-time F1 World Champion Michael Schumacher was to be involved with the three drivers by serving as a mentor.Driving under the Junior Team-moniker meant for Vietoris that he would switch teams for his sophomore season in the DTM, trading in his place at Persson Motorsport for the elite team of Mercedes in the DTM, HWA Team, replacing Bruno Spengler, who left Mercedes for BMW.Vietoris is the youngest driver ever to win an A1 Grand Prix race.