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Sweden is testing a semi-truck trailer covered in 100 square meters of solar panels
(www.popsci.com)
This is a most excellent place for technology news and articles.
Putting solar on moving vehicles makes no sense except for very specific use cases.
Install those same panels on the ground and you can point them at a good angle for sunlight capture 24/7, don't have to literally carry the weight of them everywhere, don't have to worry about them getting dirty all the time from moving around winter roads, and are much easier to repair.
I'm not a solarogist, but how do you capture sunlight 24/7?
Solar panels on one side, lunar panels on the other! Boom! Free electricity 24/7!