The original Fiat 500 from the 1950s was available in a Station Wagon version, the Giardinera, which we might consider to be the minivan's grandparent and placed the engine under the car floor. This is not the case for a possible version of the nuova 500, which is speculated in an article by Infomotori: the new 500 has its engine in the front.

Rumours about a SW version of the cinquino (the 500's nickname in Italy) have been heard since the introduction of the model but the Torino marque has yet to announce if the plans are real or just the imagination of an artist. While we're dreaming, wouldn't this be a good base for a modern EV 500.

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[Source: Infomotori]