There is no such word as particial. Have no idea what you are asking.
The Mayan pyramids were important to the Mayans because it was part of their religion
It is located right behind the ignition. It is important that this part is working correctly so that your car will start.
so the car can start
It is important so you won't get hit or run over by a car.
As its part of their religion.
Part-ex is short for part exchange. A customer buying a new car at a showroom may often have their old car taken in part-exchange, so slightly reducing the cost of the new car.
To win the race.
Taking notes is an important part, so that you have the information at hand.
Cars were important in the 1920's so that people could get around.
Do you mean what a given part is called? If so, describe where it's at.
yes. they are part of car so need to be included in the MOT. If your driving in fog you need to use fog lights, so they need to be in working order.
I'm not a mechanic so the only car part I can possibly think of is engine.