MIT start-up Terrafugia says they’re “roadable aircraft,” but everyone else just calls them flying cars. That’s the power of the Jetsons and its contemporaries, creating a conceptual framework that can both drive and shackle technology innovators. It might be a bit of a misnomer to call Terrafugia a “start-up” however, since the private aviation company has been collecting capital and working on products for more than seven years now. It’s collected about $10 million in capital from investors and defense contracts, but this year’s EAA AirVenture show was the first time the company attempted to show its flagship product in full, and pass the all-important test of approval by potential buyers — and it did so with flying (and driving) colors.