You absolutely can .. but in order to be self sustaining vehicles need to look somewhat like the builds that appear in Australian multi day solar races - ultra lightweight, extreme streamlining, zero driver comfort, no extras like cargo space and automatic rear doors, etc.

Maybe in time efficiencies will get there.

* https://worldsolarchallenge.org/

* https://www.youtube.com/watch?v=4K0FD9Hh6XY

* https://www.youtube.com/watch?v=R_lVdrHnbYo

Addendum: addressing the [dead] comment below

> With 100% efficiency the area of the car is too small to produce enough electricity to drive.

is false - Australia has been racing solar powered cars for a good many years now, clearly they generate sufficient power to drive, just not especially fast, with any reserve energy, or at night, with any real comfort, etc.