Opel - 1919 - The Opel Racetrack at Schönauer Hof near Rüsselsheim, circa 1931.

The Opel Racetrack at Schönauer Hof near Rüsselsheim, circa 1931.

Opel - 1919 - The Opel Racetrack during the racing season, 1920.

The Opel Racetrack during the racing season, 1920.

Opel - 1919 - Car racing on the Opel Racetrack, circa 1923.

Car racing on the Opel Racetrack, circa 1923.