If you co wives' have made an agreement with the ummah and vice verse..that all singular wives are not permitted to drive unless they opt for a co wife....then this is also a innovation....

As out of hardship, illness, and oppression, if a husband wishes to purchase his singular wife a car...then he has the right to do so, permitting the circumstance gives the women the rights' to an easier option of lifestyle, and that all means to purchasing a car is done under halal circumstances',....... and that the wife is completely trustworthy......of non infidelity.......pre-Islamic period of ignorance's' ...is non inclusive.

as for muslim lands'......whereby provisions are provided and schooling is near.......and there isnt an open oppression of children's freedoms' to take themselves to school...there is little reason why women should be allowed to drive....only under extreme circumstance of sickness.