Later, I noted that Toyota are really clever. They've managed to set up an exhibit where people pay them to test-drive their vehicles.
I will add, however, that this little car is surprisingly comfortable, even for a big guy like me. Assuming it had sufficient acceleration and top speed, I could easily see using something like this for commuting to work (50 miles/80 km round trip) or for short trips around town. I certainly wouldn't want to take a cross-country trip in it, though.