Imagine the engineering it took to get those things to function like a "normal" automobile. Pretty impressive.
I watched a Chrysler film on how those actually work, along with the Jay Leno's Garage, where he fires his up and takes it for a drive.
When I was growing up a guy down the street had two AMX's. I had no idea they were a two seater until years later. I always thought they were an early Javalin model, along the lines of a first gen Mustang. They're certainly a unique car.
There's a guy about a half-mile from me that has two. One's fully restored, the other's in-work but is running and driveable.