Bürger started his racing career at 23 years of age, winning the German Slalom title in 1976, and graduating to the Renault 5 Cup.

Thanks to the help of German magazine Autozeitung, in 1978 Bürger joined the Bertrand Schafer Racing team and made his F3 debut.

On 30 November 1979 Bürger had shared a BMW M1 entered by Dr. Helmut Marko, with Markus Höttinger in the 1000 km of Kyalami, retired.

Even though the mechanics repaired the broken suspension and changed the nose of the car, he could not test his Tiga F280 BMW until the warm-up session on Sunday 20 July 1980.

One hour later, he was transferred to the intensive care unit of the Wilhelmina Hospital in Amsterdam, where he succumbed to his head injuries two days later.