He said: “Thank you for a wonderful day in the UAE!
“From visiting the Jubail Mangroves and Jebel Ali Port to seeing our Earthshot finalists and celebrating the UK National Day.
“@expo2020dubai – it was great to spend time celebrating sustainability, collaboration and innovation.
“And also to see this police car…!”
When Prince George was four, he famously asked for a police car for Christmas in his wish list.
It was hand delivered to William by Father Christmas during an official visit to Finland.
George was allowed to ask for five things on his wish list but a police car was the only one in capital letters and signed by the Prince personally.
Royal fans on social media pointed out that George would love the car and the image.
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They said:” A beautiful picture of one of William’s childhood dreams come true.
“I think George would be jealous.”