Ya know I bet it drove to some limited degree. Most concepts are powered by a small electric motor just to roll it on and off stage unless it's something that was only used as a design study like the Ford Vivace Ghia Concept. Basically just a fiberglass shell on a steel ladder frame with wheels bolted to it. But if it shows off an interior like the one you're basing this on, it probably had a primitive drivetrain similar to a golf cart.