Louise's son and Ferry's nephew Ferdinand Piëch, who was responsible for mechanical development of Porsche's production and racing cars (including the very successful 911, 908 and 917 models), formed his own engineering bureau, and developed a five-cylinder-inline diesel engine for Mercedes-Benz.
O fillo de Louise e sobrino de Ferry Ferdinand Piëch, que era responsable de desenvolvemento mecánico da produción de automóbiles e de carreiras de Porsche (incluíndo os moi exitosos modelos 911, 908 e 917), formou a súa propia oficina de enxeñería, e desenvolveron un motor de cinco cilindros en liña diésel de Mercedes-Benz.