The first generation Hyundai Ioniq 5 had solar roof (at least some models).

The first gen ioniq 5 also had a very low payload capacity, with stories of families who couldn’t legally be in the car at the same time without being over the capacity.

The reason, I’m told, is that supporting the solar roof reduced the payload capacity a lot.

Also, solar cells on a car doesn’t make much sense like others have already said.