From the official F1 website:
Sabine Schmitz, the pioneering female racer and only woman to have won the Nurburgring 24 Hours endurance race, has passed away at the age of 51.
The German racer, affectionately nicknamed by many as the ‘Queen of the Nurburgring’, revealed last year that she was diagnosed with cancer in 2017.
She twice won the 24-hour race at the fabled Nurburgring Nordschleife circuit in a BMW M3, and raced a Porsche in the same event in 2008 to finish third.
Schmitz was also known for her appearances on British motoring show Top Gear, in which she famously attempted to lap a Ford Transit van around the 15-mile circuit under 10 minutes.
https://www.formula1.com/en/latest/article.pioneering-female-racer-sabine-schmitz-passes-away-aged-51.2WM2UgjARsftGvk92lApCe.html
Far far too young.