Siegfried Stohr was born the son of an Italian mother and a German father. He won the 1978 Italian Formula 3 Championship in a Chevron. In 1979 he joined the Formula 2 European Championship and reached each second places at the races at Vallelunga and Pau. Equipped with sponsor money from Beta moved Stohr 1980 Toleman, won the race in Enna, and was third in the final results of the European Championship.
In 1981, the Italians with the financial support of his sponsor in Formula 1, he denied the season for the British Arrows team, but could not prevail against his team-mate Riccardo Patrese. Above all, a serious incident at the Grand Prix of Belgium influenced the racing career of Stohr more sustainable. When chaotic starting procedure in Zolder - mechanics were still on the track, although the race was released - drove a Stohr Arrows mechanic down, who worked on the car in front of him Patrese. The mechanic escaped with serious injuries, but the shock at Stohr sat deep. He scored his best result during his last Grand Prix, the Grand Prix of the Netherlands, when he narrowly missed the Arrows A3 with the seventh championship points. At the end of the season Stohr, who could never quite overcome the accident occurred, retired from racing and set up a racing school.