However, the 1990 champion was arguably the most notable of them all: Michael Schumacher. Four years before winning the first of his seven F1 World Championship titles, Schumacher had already attracted attention with his performances in F3 and the World Sportscar Championship at a time when the profile of German F3 was rising, and within a year, he had already made his Grand Prix début. Heinz-Harald Frentzen competed against Schumacher (sharing the runner-up position in 1989), and later became a winner of three Grands Prix.