How does the design of the Piaggio Vespa impact its fuel efficiency, and what design features are responsible for this efficiency?

The design of the Piaggio Vespa contributes to its functionality and practicality as a mode of transportation in several ways. The enclosed bodywork provides protection from the weather, while the small size and lightweight design make it easy to maneuver in traffic and park in tight spaces. Additionally, the large wheels and responsive suspension system provide a smooth ride on a variety of road surfaces.