So I've been thinking about this. It's a North-South race during a solar day. Four wheels are a class requirement.
So.... An arcylic tube long enough to contain the allowance of solar panels in a linear area. IDK what the allotment is, maybe 3x21 feet? 2x25? Anyway, the long array tracks the sun morning to evening inside the tube. The four wheels are staggered and extremely cambered inside a single blister in front and back. Motorcycle tires with a variable pressure system.
https://ecomodder.com/forum/showthre...tml#post489465
Driver is supine in the diameter of the tube plus the visibility requirement. The solar cells operating in a partial vacuum would have a cooling jacket feeding a low-temperature Stirling engine to capture all the light the PV cells reject.
The tube could could have front and rear bogeys so it would look like a little log truck.