Nowadays, more than ever, the automotive field is involved in a period of strong change and innovation. The evolution scenario regards two main topics: the technical switch from vehicles driven by a thermal propulsion to vehicles driven by an electric one (electrification) and the switch from a standard driving to an autonomous one (digitalization). The objective of this master thesis work, performed in collaboration with Italdesign, is to investigate how the electrification and the digitalization influence the vehicle external proportions and the vehicle interiors in terms of characteristic dimensions, seat position and ergonomics. To study the influence of the electrification, BEVs (battery electric vehicles) and ICEVs (internal combustion engine vehicles) are compared in terms of exterior and interior dimensions, and silhouette.