I would say also about 180k - but pounds, not dollars. I had a look at what a 35is would cost in Singapore recently and it was obscene (was doing it out of interest, can't remember the thread I posted it on)
Cars are not encouranged in Singapore because it is so small. They have always been very expensive - especially imports... Which trechically all cars are in Singapore. Not sure that there are any manufacturers manufacturing there :?
Malaysia tax new car imports very heavily - otherwise Proton would go bust. They don't have to pay the staggering amount of money required in Singapore just to have the bit of paper that says you can go buy a car. I am not sure how hard they tax used imported cars in Malaysia though.
To be honest you really don't need a car in Singapore. The MRT is brilliant, buses run on time and taxis are relatively cheap. Half of its for show, I mean christ have you seen this: