The roof and engine lids feature the magnesium component. (dupontregistry.com)
The rear engine lid featured twin scoops that mimicked the roofline and fed additional cooling air to the engine at speed. (classicandperformancecar.com)
A revised engine lid with two ducts protruding above the roofline forced air into the intake system; a similar lid design would later be used on the Diablo SV model. (en.wikipedia.org)