One Rhws Primary School pupil - with full permission - spoke to ITV News about the collision, in which her friend was involved.
"I was just walking down the playground when I heard the bang," she said.
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The case has now been adjourned until February, due to a delay which the judge blamed on Brexit.
Police described it as a 'particularly vicious crime'.
Four men from Newport have been sentenced to more than 40 years in prison after being convicted of conspiracy to supply drug offences.