Hey there,
I have been working with a company in San Francisco creating solar backpacks for a few months called BirkSun:
http://www.birksun.com.
We were fortunate to get to spend some time with one of the teams in the ASC.
Love the passion for the project.
What I don't think people realize is that doing something like this is legitimately feasible; there's no question it's challenging, but organizations, ourselves included, are starting to do more with the attraction of sunlight into these panels than ever before.
To get these cars on the road I think the trick will be ensuring they can operate in limited sunlight, and have partial access to a battery so there's no blind energy conversion.
