Original sentence: However, in spite of its basic design, the Renault 4 had an extremely comfortable ride, due to well-designed suspension (which lent the Renault 4 a softer, more fluid ride than many modern cars) and a habitable interior due to comfortable seats, powerful heater and effective ventilation
Edited sentence: However, in spite of its basic design, the Renault 4 had an extremely comfortable ride, due to well-designed suspension (which lent the Renault 4 a softer, more fluid ride than most modern cars - designed for long neglected post war straight pavé roads built by Napoleon) and a habitable interior due to comfortable seats, powerful heater and effective ventilation