Here's a few pics of my Dahon Piccolo. That's my new (used) Optima Dragon in the background.
My son has been riding it more than I have. He had late-night play practices at school, and it was convenient for him. He'd commute to school in the morning, and then throw it in a neighbor's trunk, to bring it home late at night. I have to teach him to inflate the tires periodically. It's probably apparent that the rear is low.