These are very interesting
These are very interesting ideas but let me quibble at a few points
a) there are very few flat spots on the typical car, and it's difficult to get the car pointed at the sun in an optimal direction for optimal energy capture. That is, optimal energy capture is with large flat panels at the correct angle pointed directly at the sun and following the sun as it moves across the sky. This is really difficult to do in a car. And in any case the surface area of a car is so small that it would make an ineffective solar collector even if you could arrange to point the car at the sun at the right angle. Hence it would be good for little more than a trickle charge.
b) how is putting generators on wheels different from simple normal regenerative braking? Or are you suggesting something that would be an over-unity device if you were to actually build it?
c) getting 240 miles/charge is not a function of the battery manufacturer, but of being able to cram enough kilowatt hours of storage into the vehicle.