The Lancia Megagamma is a small, almost one-box, concept MPV, designed by Italdesign and introduced at the 1978 Turin Motor Show. In retrospect, the Megagamma was more influential on later designs than it was itself successful, becoming the "conceptual birth mother of the MPV/minivan movement."
Featuring high seating h-points measured both off the vehicle floor and the pavement and a 0.34 coefficient of drag, the Megagamma used a front-engined, front-wheel-drive layout based on the Lancia Gamma platform with a Lancia SOHC 2.5 liter flat-4 engine and Bosch L-Jetronic fuel injection.
Italdesign showed an enduring commitment to exploring one-box designs, having preceded the Megagamma with the 1976 Alfa Romeo New York Taxi concept and followed the Megagamma with the 1982 Capsula, 2000 Maserati Buron, and 2010 Proton Emas.
The Megagamma itself presaged many attributes of the modern MPVs — notably a roomy but compact, flexible cabin with a flat floor not unlike such notable antecedents as the Volkswagen Type 2 (1950) and the DKW Schnellaster (1949-1962) and such notable succeeding mini/compact MPV's as the Nissan Prairie (1981), Fiat 500L (2011) and Mitsubishi Chariot (1983) — as well as a wide array of similarly-sized and larger MPV's including the Renault Espace, Honda Shuttle and Chrysler Minivans.
At the time of its debut, Lancia's parent company, Fiat, viewed the concept as too risky and did not reach production. However, the tall, box-like styling language of the concept would appear again in Giugiaro's later supermini designs for Fiat in the form of the Panda (1980) and Uno (1983).
Source: CloudFormed API. https://api.cfd/wiki/Lancia_Megagamma
Images: ItalDesign, Cars From Italy