It is normally no laughing matter when your car will not start on a freezing cold day.
But the Queen evidently saw the funny side when her state Bentley, said to be worth £10m, refused to come to life after a church service at Sandringham today.
Standing nearby, she was seen laughing and pointing as her chauffeur tried to coax the motor into action outside St Mary Magdalene church on the Norfolk estate.
The car's V8 6.75 litre engine finally spluttered into life at the seventh attempt and the Queen, wearing a checked black and white coat with a white hat decorated with black bows, climbed in for the quarter-of-a-mile drive back to Sandringham House.
The Duke of Edinburgh walked to and from the church as normal, despite the freezing weather.