[quote=@TheUnknowable]
<Snipped quote by Letter Bee>

Look at modern solar vehicles.  Only small, lightweight vehicles can run completely on solar power, and then are relatively slow.  A truck would be much larger and heavier.  If the solar panel recharged energy cells and then you ran off of energy cells it would make more sense, but in that case it would be more of an electric car than a solar car.
[/quote]

The latter is what I meant.