Honestly it seems like a no-brainer to me to put a solar panel on the roof of electric cars to increase their action radius, so I figured there’s probably one or more good reasons why they don’t.
Also, I acknowledge that a quick google could answer the question, but with the current state of google I don’t want to read AI bullshit. I want an actual answer, and I bet there will be some engineers eager to explain the issues.
The new Prius Prime has an optional rooftop solar panel.
According to an article in Slash Gear you can get about 4 miles of range after 9 hours in the sun.
So it has the potential to marginally increase your range on the scale of a short commute under ideal circumstances, but it’s not much apparently.