Buying a car. In Singapore first you have to bid for a COE (certificate of entitlement) as you need one of these in order to be able to own a car. This is the governments way of limiting the number of cars on the road. The COE currently goes for around S$14,000. Then you have to buy the car. A Mitsubishi Evo X new is currently S$153,000, a Mazda 6 is S$89,000. There is almost no second hand market and if you take the car off the road before the entitlement period for the COE validity (10 years) runs out you can get some of the cost back (sales tax on new cars has just been lowered from 110% to 100%). For example if you take the car off the road perminantly after 3 years you can get 50% of the tax back. There is also road tax at around S$100 / month, parking charges which could easily be another S$100 / month and charges for using the toll roads (most of central Singapore). That is without petrol, insurance and maintenance.
Car prices are kept artificially high by the government, as part of their measures against congestion and pollution. (Hence the plethora of taxes, licences, permits & restrictions). It's a bloody good policy tbh - though I'm sure it's frustrating if you're accustomed to driving everywhere. I know it would drive me nuts at first.
You forgot to mention that Singapore is impeccably clean (cleanest city in the world IIRC) with a no-nonsense attitude to crime and the safest streets on the planet (rivalled only by Japan's).