I've seen a few tilting solar panel setups on vans. Most of them require much additional framing and raise the flat panels quite a bit above the roof which significantly decreases stealth factor. In this video I test out a design that allows my panels to lay flush on the roof but still be actuated to a tilted position with a linear actuator and no complex mechanisms.

This is definitely not the finished product. I am going to try to add some stabilizers on the outsides of the array so the weight load is not entirely on the actuator and so that it's more stable in windy conditions. It will be powered with a wireless controller. I will also add some "feet" to the framing of the array so that the metal no longer contacts the roof. I think this conducts a lot of heat into the box, so adding insulating feet should significantly decrease total heat getting into the box.

I am also looking into adding a sensor to the controller circuit to track the sun and tilt ...