After a successful career in karting, Otto Rensing contested a season of Formula Ford before he became a BMW works driver with BMW Team Schnitzer. With BMW he took overall victory in the 1986 Nürburgring 24h race.
From 1987 onwards Otto started competing in Formula 3. He was a proven race winner in this series, taking two vice-championships in the German F3 championship, finishing as runner-up to Michael Schumacher in 1990.
Nowadays Otto still enjoys racing on his simulator, which is equipped with a set of Heusinkveld Sim Pedals Sprint.