In some cultures, owning a luxury car is seen as a symbol of wealth.

wealth 是名词，意思是"财富、富裕"，指个人或群体拥有的金钱、财产等物质资源的总和。这个词来自古英语"weal"，表示"福利、幸福"，加上后缀"-th"构成抽象名词。