No Singapore based airline offers an expat package anymore, all contracts are on local terms.
You will have to live a lifestyle similar to a local. A Captain’s salary is already way above the average what the locals are getting.
Cars are way too expensive, but given the public transport setup here, you can easily get by without one.
Housing is expensive too, but we don’t have the amount of land like most of where you guys come from. The general population live in apartments and people get by just fine.
If you’re looking for a big house, a car and still be able to put your kids through international schools, I’m afraid you might have to look elsewhere, if you can find any place that can offer you these and yet enjoy what Singapore offers - safety, corruption free society etc.