Good video which goes over the math. The summary: the car doesn’t have enough surface area even in the sunny Australias Outback to charge itself.
it would depend on how far you have to drive to work it seems. If you only drive a couple of miles and the car sits outside all day long in the parking lot not being used. It would be enough.
EVs sucked when they were first introduced in the 1890s and still suck today. It's just that people have a lot less sense today or there wouldn't be so many morons buying them.
Needs more surface area....so have fold out panels that also shade the interior of the car so it’s not so hot when you get in.
Where there is a will some engineer will find a way.
Course you could buy the commercial version of it as well.
https://www.core77.com/posts/133240/GoSuns-EV-Solar-Charger-Unfolds-From-Your-Cars-Roof#
Tandem cells are busting the upper limits for conversion rates 43% is in reach.
https://interestingengineering.com/energy/china-jinkosolar-perovskite-solar-cell-efficiency