An enclosed pedal car in the style of the ELF would be nice. Where you sit upright on a bench style seat and the pedals are similar in position to a DF bike. By that I mean down and a bit in front of the seat. And made just long enough to have room for a passenger. The gearing would be low enough to make pedalling somehat easy and in my case a front drive electric assist motor would be added as well. A top speed of say 16 kph would be enough, It could be nice liesurely way to get around, pick up groceries, etc.