Over the past week we've experienced at least four incidents of children being rescued from hot cars in the Kiwi summer heat.
On Thursday afternoon a man found a baby crying in a car in the Bay of Plenty while his mum was inside the Papamoa TAB.
Seven Sharp wanted to find out how hot can cars actually get and how long does it take before things get ugly for those inside?
Julian Lee performed some experiments in the video above.
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