"1921" . . . "1925" . . "Rumpler Tropfenwagen" . . . . . . . . . . "Tropfenwagen" . . . "''Tropfenwagen''" . . . "''Tropfen-Auto''" . . . . . . "Tropfen-Auto" . "Rumpler Tropfenwagen" . "Rumpler Drop Car" . . "the car" . "3-speed manual" .