14. Retractable Headlight Covers
Unlike pop-up headlights, some classics—such as the Porsche 928—featured retractable covers that slid away to reveal fixed lamps beneath.
These intricate mechanisms were costly and prone to issues, yet they added an unmistakable, futuristic flair.
Today, retractable headlight covers are cherished by collectors for their uncommon style and the engineering novelty they represent—details rarely, if ever, seen on modern vehicles.
Source: Jalopnik