The SmallCar was made in AutoCAD, with a length of a little under 10 inches. It was drawn largely by eye, using rounder numbers and the overuse (and abuse) of OSNAPs.
As for my inspiration: it was Taylor's 3-D flying car from this past Spring. As for the model, it was the current Nissan Altima Coupe and Toyota Camry, as well as the Honda Accord of the past.
It is a prototype and is meant to be a proof of concept of sorts. I plan to make a "nicer" car in due time.