Of the high-income countries included, only Singapore has a relatively low per capita motor vehicle ownership mainly due to limitations on vehicle ownership, aggressive support of public transport and high taxes on automobiles.
在列出的高收入国家中，只有新加坡的人均机动车辆拥有量较低，主要原因是该国限制车辆的拥有量，大力支持公共运输并对汽车征收高额税款。