The radiator is made of copper because copper transfers heat very well.
The car engine radiator.
most car radiators are copper or aluminum and plastic.
Older vehicles had copper and steel radiators, newer vehicles are made of aluminum and plastic.
They used to be copper and steel but now they are made of aluminum and plastic.
They aren't. Older ones are made of copper, now it's aluminum. Platinum is used in the catalyctic converter.
The purpose of a radiator is to transfer heat from the engine to the atmosphere, so radiators need to be made of a material with a high heat transfer coefficient. Aluminum has a high heat transfer coefficient. In other words, aluminum conducts heat very well. There are other materials, such as copper, which conduct even better, but aluminum is more economical to use than copper.
To keep the car engine from over heating
A radiator cools the water that flows around the engine.
The radiator cools the engine.
Radiator stores engine coolant for circulation throughout the engine The radiator is placed at the front of the engine and exposed to the atmosphere to keep coolant cool to maintain proper engine temperature
The radiator cools the water which then goes to your engine to cool it off, as cool water enters your engine hot water from the engine enters your radiator
A car with a leaking radiator can be driven, but when the coolant leaks out, the engine will overheat and when the engine gets hot enough, it will seize-up, the car will stop, and the engine will have suffered severe damage.