A witness said he spotted a pink blanket in the posh car, which was being escorted by a police motorcade.
Tamoor Ali told The Sun: “We saw a vehicle that had pink paraphernalia at the back of the windscreen go past — it was going very slowly over speed bumps.
“It seemed to me some kind of blanket of some sort.
“It seemed like someone was in there who couldn’t handle speed bumps — a baby.”
But it later emerged that the car was carrying the Queen to present a service of the Royal Victorian Order at St George's Chapel in front of 1,200 people today.
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