i have nothing against the veil but do agree that it is dangerous to drive with ur eyes covered.i am sure they can uncover their eyes and just wear the niqab(nose and rest of the face covered in addition to hijab), atleast while they are driving so as not to put our as well as their lives in danger.
I'd like to clarify,the veil is not a cultural but a religious requirement.it is not a compulsion but hijab ie head covering is.