But NYC is surrounded by places you can drive to. Singapore is not. The mainland city of Johor Bahru is a relatively poor city of only 500K people, and beyond that it’s farmland until you get to the Malaysian captial, more than 4 hours away. So I wouldn’t expect the two cities to have the same preferences for car ownership in any case.
In Singapore, a certificate to own a car now costs $106,000 (www.reuters.com)