"Rental car" 是出租汽车的英语称呼。
"Rental" 是英文 "rent" 的名词形式，意为 "租金" 或 "租用"。而 "car" 是 "汽车" 的意思。
举例：
I need to rent a car for the weekend. (我需要租一辆车度过这个周末。)
The rental car company had a wide selection of vehicles. (这家出租汽车公司有很多不同型号的车可供选择。)
We returned the rental car at the airport before our fpght. (我们在班机起飞前把租来的车还给了机场。)