I wonder how they got to 450 miles a day on solar. I remember the Prius solar roof option would only give you a couple of miles a day in ideal circumstances. This camper has more panels but that’s still a bit jump to 450 miles.
I remember a lecture at university where we assumed a cars body was 100% covered in solar panels and that the sun was hitting all panels simultaneously and that the panels were 100% efficient and the car was above the earths atmosphere and we calculated that the power produced was equivalent to 6HP or the size of a riding lawn mower engine. It was meant to show that physics forbade a solar powered car as we knew them…
Back on planet earth, the most common solar panels have efficiencies between 15-20% [2]. Direct radiation is diminished by the cosine of the angle of solar tilt. It takes another ~2 hp to overcome drag at just 30mph [3]. Who knows how much this setup would weigh. You'd have to be Speed Racer's long-lost brother in Arizona to win a mid-summer dead-heat race at noon with a go-cart.
[1] https://www.newport.com/t/introduction-to-solar-radiation
[2] https://css.umich.edu/factsheets/photovoltaic-energy-factshe...
[3] https://web.archive.org/web/20190616063447/http://phors.loco...