The firewall of the Citroën 2CV is a crucial, precisely positioned panel that separates the engine compartment from the car's interior. This metal component, often praised for its simple yet effective design, plays an essential role in shielding against engine noise and heat transfer to the passenger area. Specific to the iconic Citroën 2CV, the firewall contributes to the car's structural integrity while simultaneously protecting passengers from engine and fuel fires in the event of an accident. It is a vital part that enhances the safety and comfort of this classic car.