Mine's Nobby It was going to be called Mo Mo, but the reg number is KM08 which if you squint looks a bit like "knob" so......
My daughter calls mine the mushroom, I sometimes call it the coupon. I started calling it coupon after the auto correct on my iPad changed Copen to coupon when I was doing a google search. You don't get many hits when you google Daihatsu Coupon.
dwayner My next door neighbors kid is a huge fan of star trek Voyager. since we have the copen, a medium sized and a large car. He calls the large one Voyager, the medium the runabout and the when i asked him what is smaller than the runabout? he said, "the Pod" so that kinda stuck.