So, do you know what a test is? Sometimes, when we want to know if something is good or not, we do a test. For example, it's like when you take a math test at school to see how good you are at math.
Well, the new car assessment program is a bit like that. People want to know how safe a new car is before they buy it or before they drive it. So, a group of people do some tests on the car to see how good it is at keeping the driver and passengers safe.
The people doing the test look at things like how strong the car is in a crash, if it has airbags to protect the people inside, and if it has special systems to stop the car quickly if someone suddenly steps in front of it.
They also give the car a score, which is like a grade. The higher the score, the safer the car is.
So, when someone wants to buy a new car, they can look up its score on the new car assessment program website to see how safe it is. It's like knowing if you got an A on your math test or not before you take it.