The observations are available over this portal. Spend some time reading for PKDM vehicles, figure out the brand and model variant suitable to your requirement.
As your family car please make a decision for vehicle which is fuel efficient, and economical over maintenance. a personal preference for family vehicle shall always be a sedan with boot space.
Buying a vehicle in Pakistan is capital investment take your time do not go in panic buying because of any pressures.
Good Luck Sir