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  • 12 Hours of Sebring

    12 Hours of Sebring

    Harald Grohs, Rolf Stommelen, and Howard Meister drive car number 3, a Porsche 935 K3.

  • 12 Hours of Sebring

    12 Hours of Sebring

    Harald Grohs, Rolf Stommelen, and Howard Meister drive car number 3, a Porsche 935 K3.

  • 12 Hours of Sebring

    12 Hours of Sebring

    Harald Grohs, Rolf Stommelen, and Howard Meister drive car number 3, a Porsche 935 K3.

  • 12 Hours of Sebring

    12 Hours of Sebring

    finished 4th overall

  • 24 Hours of Daytona

    24 Hours of Daytona

    Harald Grohs, Frank Katthöfer, Bernd Mayländer, and Mark Sandridge drive car number 02, a Porsche 911 Carrera RSR.

  • 24 Hours of Daytona

    24 Hours of Daytona

    Harald Grohs, Frank Katthöfer, Bernd Mayländer, and Mark Sandridge drive car number 02, a Porsche 911 Carrera RSR.

  • 24 Hours of Daytona

    24 Hours of Daytona

    Harald Grohs, Frank Katthöfer, Bernd Mayländer, and Mark Sandridge drive car number 02, a Porsche 911 Carrera RSR.

  • 24 Hours of Daytona

    24 Hours of Daytona

    Harald Grohs, Frank Katthöfer, Bernd Mayländer, and Mark Sandridge drive car number 02, a Porsche 911 Carrera RSR.

  • 24 Hours of Daytona

    24 Hours of Daytona

    Harald Grohs, Frank Katthöfer, Bernd Mayländer, and Mark Sandridge drive car number 02, a Porsche 911 Carrera RSR.

  • 24 Hours of Daytona

    24 Hours of Daytona

    Harald Grohs, Frank Katthöfer, Bernd Mayländer, and Mark Sandridge drive car number 02, a Porsche 911 Carrera RSR.

  • 24 Hours of Daytona

    24 Hours of Daytona

    Harald Grohs, Frank Katthöfer, Bernd Mayländer, and Mark Sandridge drive car number 02, a Porsche 911 Carrera RSR.

  • 24 Hours of Daytona

    24 Hours of Daytona

    Harald Grohs, Frank Katthöfer, Bernd Mayländer, and Mark Sandridge drive car number 02, a Porsche 911 Carrera RSR.

  • 24 Hours of Daytona

    24 Hours of Daytona

    Harald Grohs, Frank Katthöfer, Bernd Mayländer, and Mark Sandridge drive car number 02, a Porsche 911 Carrera RSR.

  • 24 Hours of Daytona

    24 Hours of Daytona

    Harald Grohs, Frank Katthöfer, Bernd Mayländer, and Mark Sandridge drive car number 02, a Porsche 911 Carrera RSR.

  • 24 Hours of Daytona

    24 Hours of Daytona

    Harald Grohs, Frank Katthöfer, Bernd Mayländer, and Mark Sandridge drive car number 02, a Porsche 911 Carrera RSR.

  • 24 Hours of Daytona

    24 Hours of Daytona

    Harald Grohs, Frank Katthöfer, Bernd Mayländer, and Mark Sandridge drive car number 02, a Porsche 911 Carrera RSR.

  • 24 Hours of Daytona

    24 Hours of Daytona

    Car number 99, a Porsche 911 co-driven by Andy Pilgrim, Harald Grohs, Larry Schumacher, and William Pace.

  • 24 Hours of Daytona

    24 Hours of Daytona

    Harald Grohs, Frank Katthöfer, Bernd Mayländer, and Mark Sandridge drive car number 02, a Porsche 911 Carrera RSR.

  • 24 Hours of Daytona

    24 Hours of Daytona

    Car number 42 a Porsche 911 co-driven by Jarett Freeman, Simon Gregg, and Max Schmidt. Followed by car number 99, a Porsche 911 co-driven by Andy Pilgrim, Harald Grohs, Larry Schumacher, and William Pace.

  • 24 Hours of Daytona

    24 Hours of Daytona

    Harald Grohs, Frank Katthöfer, Bernd Mayländer, and Mark Sandridge drive car number 02, a Porsche 911 Carrera RSR.

  • 24 Hours of Daytona

    24 Hours of Daytona

    Harald Grohs, Frank Katthöfer, Bernd Mayländer, and Mark Sandridge drive car number 02, a Porsche 911 Carrera RSR.

  • 24 Hours of Daytona

    24 Hours of Daytona

    Harald Grohs, Frank Katthöfer, Bernd Mayländer, and Mark Sandridge drive car number 02, a Porsche 911 Carrera RSR.

  • 24 Hours of Daytona

    24 Hours of Daytona

    Car number 99, a Porsche 911 co-driven by Andy Pilgrim, Harald Grohs, Larry Schumacher, and William Pace.

  • 24 Hours of Daytona

    24 Hours of Daytona

    Harald Grohs, Frank Katthöfer, Bernd Mayländer, and Mark Sandridge drive car number 02, a Porsche 911 Carrera RSR.

  • 24 Hours of Daytona

    24 Hours of Daytona

    Harald Grohs, Frank Katthöfer, Bernd Mayländer, and Mark Sandridge drive car number 02, a Porsche 911 Carrera RSR.

  • 24 Hours of Daytona

    24 Hours of Daytona

    Harald Grohs, Frank Katthöfer, Bernd Mayländer, and Mark Sandridge drive car number 02, a Porsche 911 Carrera RSR.

  • 24 Hours of Daytona

    24 Hours of Daytona

    Harald Grohs, Frank Katthöfer, Bernd Mayländer, and Mark Sandridge drive car number 02, a Porsche 911 Carrera RSR.

  • 24 Hours of Daytona

    24 Hours of Daytona

    Harald Grohs, Frank Katthöfer, Bernd Mayländer, and Mark Sandridge drive car number 02, a Porsche 911 Carrera RSR.

  • 24 Hours of Daytona

    24 Hours of Daytona

    Harald Grohs, Frank Katthöfer, Bernd Mayländer, and Mark Sandridge drive car number 02, a Porsche 911 Carrera RSR.

  • 24 Hours of Daytona

    24 Hours of Daytona

    Harald Grohs, Frank Katthöfer, Bernd Mayländer, and Mark Sandridge drive car number 02, a Porsche 911 Carrera RSR.

  • 24 Hours of Daytona

    24 Hours of Daytona

    Harald Grohs, Frank Katthöfer, Bernd Mayländer, and Mark Sandridge drive car number 02, a Porsche 911 Carrera RSR.

  • 24 Hours of Daytona

    24 Hours of Daytona

    Harald Grohs, Frank Katthöfer, Bernd Mayländer, and Mark Sandridge drive car number 02, a Porsche 911 Carrera RSR.

  • 24 Hours of Daytona

    24 Hours of Daytona

    Harald Grohs, Frank Katthöfer, Bernd Mayländer, and Mark Sandridge drive car number 02, a Porsche 911 Carrera RSR.

  • 24 Hours of Daytona

    24 Hours of Daytona

    Harald Grohs, Preston Henn, Jean-Louis Schlesser, and Walter Brun drive car number 16, a Porsche 935L.

  • 24 Hours of Daytona

    24 Hours of Daytona

    Harald Grohs, Frank Katthöfer, Bernd Mayländer, and Mark Sandridge drive car number 02, a Porsche 911 Carrera RSR.

  • 24 Hours of Le Mans

    24 Hours of Le Mans

    Dieter Schornstein, Harald Grohs, and Götz von Tschirnhaus drive car number 60, a Porsche 935 J.

  • 24 Hours of Le Mans

    24 Hours of Le Mans

    Dieter Schornstein, Harald Grohs, and Götz von Tschirnhaus drive car number 49, a Porsche 935.

  • 24 Hours of Le Mans

    24 Hours of Le Mans

    Car number 60, a Porsche 935 J for Dieter Schornstein, Harald Grohs, and Götz von Tschirnhaus drives down the track.

  • 24 Hours of Le Mans, France
  • IMSA 24 Hours of Daytona

    IMSA 24 Hours of Daytona

    Harald Grohs, Frank Katthöfer, Bernd Mayländer, and Mark Sandridge drive car number 02, a Porsche 911 Carrera RSR.

  • IMSA 24 Hours of Daytona

    IMSA 24 Hours of Daytona

    Harald Grohs, Frank Katthöfer, Bernd Mayländer, and Mark Sandridge drive car number 02, a Porsche 911 Carrera RSR.

  • IMSA 24 Hours of Daytona

    IMSA 24 Hours of Daytona

    Harald Grohs, Frank Katthöfer, Bernd Mayländer, and Mark Sandridge drive car number 02, a Porsche 911 Carrera RSR.

  • IMSA 24 Hours of Daytona

    IMSA 24 Hours of Daytona

    Harald Grohs, Frank Katthöfer, Bernd Mayländer, and Mark Sandridge drive car number 02, a Porsche 911 Carrera RSR.

  • IMSA 24 Hours of Daytona

    IMSA 24 Hours of Daytona

    Harald Grohs, Frank Katthöfer, Bernd Mayländer, and Mark Sandridge drive car number 02, a Porsche 911 Carrera RSR.

  • IMSA 24 Hours of Daytona

    IMSA 24 Hours of Daytona

    Harald Grohs, Frank Katthöfer, Bernd Mayländer, and Mark Sandridge drive car number 02, a Porsche 911 Carrera RSR.

  • IMSA 24 Hours of Daytona

    IMSA 24 Hours of Daytona

    Harald Grohs, Frank Katthöfer, Bernd Mayländer, and Mark Sandridge drive car number 02, a Porsche 911 Carrera RSR.

  • IMSA 24 Hours of Daytona

    IMSA 24 Hours of Daytona

    Harald Grohs, Frank Katthöfer, Bernd Mayländer, and Mark Sandridge drive car number 02, a Porsche 911 Carrera RSR.

  • IMSA 24 Hours of Daytona

    IMSA 24 Hours of Daytona

    Mark Sandridge, Harald Grohs, Frank Katthöfer, and Bern Mayländer in the Winner's Circle.

  • IMSA 24 Hours of Daytona

    IMSA 24 Hours of Daytona

    Harald Grohs, Frank Katthöfer, Bernd Mayländer, and Mark Sandridge drive car number 02, a Porsche 911 Carrera RSR.

  • IMSA 24 Hours of Daytona

    IMSA 24 Hours of Daytona

    Mark Sandridge, Harald Grohs, Frank Katthöfer, and Bern Mayländer in the Winner's Circle.