When I worked for Segway I experimented with how they fit into lifestyles. They might be fine for urban apartment dwellers in ice-free climates but anything less than a car doesn't work if you have a house in the suburbs. For me the minimum is a smaller SUV with a roof rack to carry lumber and roofing panels. I just brought home a compact refrigerator in it. Bicycles and motorcycles are nearly useless in northern winters.
I attended an electric vehicle show that a local college hosted and test-drove the BMW i3, which is a blast to drive though impractical for my use, with its EPA-rule-limited tiny gas tank. They can travel 3 to 4 miles per KWH which brings them into the range of practicability to recharge with a rooftop solar array.
I already recharge most of my batteries (except NiCad/Nimh) with solar power and home made charge controllers. Lead-acids are easy. Lithium isn't too difficult but you need to know and strictly observe the voltage and current limitations of the batteries you have. When NiCads are too dead for their dedicated charger they can be partially charged and restored to service.
If you can't design circuits this does the job, though it may hop below the maximum power point and draw Isc short-circuit current at low voltage from the panel. A linear regulator is more stable.
-jsw