Public transport is very good in Singapore. Why must people need to have a car in SIN? Considering the amount of COE these days, the cost of COE can actually have you in a cab on a daily basis!
Every education systems are taught differently. What may be good for USA, Japan, EU or Australia may not be good for SIN. There are many other options available in terms of accommodations. A nice 3 bedrooms condo can go from 3000 to 10000 per month. One have lots of choices..from a condo, EC, or a EM/EA type of HDB. So the choices are yours..not all the condos are in the good locations and not all the HDBs are of in the lower standards than a condo. Do some research, talk to people that are actually flying there at the moment..
Good luck