This is the 5203rd most frequent Chinese word.
一輛私家
The phrase "一輛私家" means "a private car."
Here, "一輛私家車" refers to a singular private car, with "一輛" being the quantifier for vehicles and "私家車" meaning private car.
我看見了一輛私家車停在街角。
I saw a private car parked at the corner of the street.
The phrase "一輛私家車" is used to accentuate the occurrence of a private car in the context of regular timing.
這條路上每過一分鐘就有一輛私家車經過。
On this road, a private car passes by every minute.
In this sentence, "一輛私家車" emphasizes the ownership and fiscal responsibility associated with a private car.