It probably comes from an expression used for many years by people who fix parts of cars and trucks.

VOA: special.2009.11.29

But for the most part, I mean, I've seen... I don't know how many times I've seen paparazzi almost get hit by cars.

但是大部分情况下，我是说，我见过……我都忘了多少次我看到狗仔队差点被车撞上。

溺爱是一种伤害 - SpeakingMax英语口语达人

You got to assign a dollar value to know whether you want to prevent those deaths by banning the use of cell phones in cars.

你必须用金钱来衡量,是否需要禁止司机使用手机,来避免此类事件发生。

耶鲁公开课 - 公正课程节选

That is about half the price of similar cars offered by the nearest competitor.

VOA: special.2009.03.28

So if you look at the cars driving by, most of them are Land Rovers and Mercedes.

那么你看周围开过的车，大都是陆虎和梅塞德斯。

比佛利山庄的美食街 - SpeakingMax英语口语达人

Motorists along the route, their cars decked with flags, honked their horns in support as the band went by.

VOA: standard.2010.06.10

You see hundred thousand dollar cars every day passing by.

你天天看到价值几十万美元的车路过。

比佛利山庄的购物街 - SpeakingMax英语口语达人

All the cars exported from India were compact cars produced by global automakers such as Suzuki and Hyundai.

VOA: standard.2009.09.25

Foreign remittances from the diaspora now account for almost 20 percent of GDP by some estimates, and new cars frequent the streets of the capital.

VOA: standard.2009.06.04

The dealership is losing its cars and trucks made by the U.S.automaker Chrysler.

VOA: standard.2009.06.04

Mr.Obama vowed to put one million plug-in hybrid cars on U.S.roads by 2015.

VOA: standard.2009.03.20

It is not just domestic sales that jumped. Exports also increased by more than 18 per cent as demand increased for compact, fuel efficient cars in several countries.

VOA: standard.2009.03.13

"Two-point-four billion dollars in highly competitive grants to develop the next generation of fuel-efficient cars and trucks, powered by the next generation of battery technologies all made right here in the U.S.of A,"

VOA: standard.2009.08.05