Your basic salary 17600
company car saving of approx 2500 - 3000 plus fuel approx. 300 per month.
private furnished apartment (maybe u want to 2 BR) saving of 15000 (maybe u want 3 bedroom) saving of 18K - 20K
school allowance i dont know how much it cost sisnce i dont have any, so i would say ur package is worth anywhere between 40K- 50K. Thats very good salary for here for a couple with an infant.

Goodluck!