Because the roof and the sides of the vehicle just screams a potential for a large solar install, here are a few threads on such things on here.
http://ecomodder.com/forum/showthrea...llel-8508.html
http://ecomodder.com/forum/showthrea...rls-36302.html
http://ecomodder.com/forum/showthrea...oof-32159.html
http://ecomodder.com/forum/showthrea...roof-4097.html
http://ecomodder.com/forum/showthrea...ons-17009.html
http://ecomodder.com/forum/showthrea...ery-28418.html
DIY Car Solar Roof
It looks like there are a LOT more threads on the subject.. so if anybody finds any good ones, feel free to post...
Personally I'm thinking thin film might be better than panels.. but I'm sure there are a lot of pros and cons either way.
https://news.energysage.com/thin-fil...ls-make-sense/