If company is going to provide you car, fine else you have to Buy and spend addtional for that car every year. Also going through the Licencing procedure will cost you 30K minimum.
For Child education include transportation fees. Further more you will not find the classes ( if find not the quality of home country)for children. for any Extra activities of children have to spend more. Finding the resources to get done, spend more.. with more headache pain..

Further how is the job security in Mannai, I don know..

Do through plan and take decision.

Best wishes for new year.
nJoy