Nail -> head Daox...
I don't need the size myself as Mrs A will have a 2011 Prius which is slightly bigger, I think, than the earlier one. One thing she is worried about is not having a car to transport the family when we do need to travel, so I may be pushed towards a van with windows which is what I was looking at when she wanted a coupe
Something like
or perhaps a smaller one
Both have super eco Diesel engines and enough space for bikes etc. but as much frontal area as a small cottage...