The luxury Range Rover driven by the Duke of Cambridge when he picked up his newborn son Prince George from hospital is being sold in aid of charity.
When William and Kate left the private maternity unit at London's St Mary's Hospital they were travelling in an exclusive 4x4, now up for auction to raise funds to buy IT equipment for schools, hospitals and orphanages in developing nations.
Nathaniel Comer, founder of charitable company Sun Screen IT which supplies the computers, has given the Range Rover a guide price of £150,000 and is inviting sealed bids for the vehicle being sold on the Auto Trader website.
He said: "Now seems an opportune time to sell as it's (virtually) three years to the day the car was seen by billions around the world when Prince William fitted the baby seat very well and drove off."
George celebrates his third birthday today and he first appeared in public on July 23 2013 when his parents left hospital.
An Auto Trader spokesman said the Range Rover was given to William and Kate for their personal use by Land Rover's VIP department and it features an array of kit that owners of luxury cars will be used to, including leather upholstery, electrically adjustable and heated seats, and climate control.
The couple were presented with the keys in 2013 and went on to clock up many thousands of miles on personal trips before it was returned to the car firm and later sold to a private buyer.
Mr Comer became the next owner of the Range Rover after buying it in April for an undisclosed sum.
He spotted the famous vehicle for sale in Auto Trader and realised he could raise some funds for his charity.
He said: "It drives like a boat gliding through a velvet sea - very smooth and very power. It's refined but it can shift as it has got a 4.4 litre engine.
"It's got a little fridge in the central console which had a few crumbs in it when I bought it but I told the last owner not to clean it in case they came from George's food."
The auction for the 4x4, which has done 31,000 miles, ends on August 19 and proceeds from the sale, after costs are covered, will not only go to Sun Screen IT but the military mental health charity, Stand Down.
Jon Quirk, Auto Trader's editor-in-chief, said: "The Range Rover has long been considered the ultimate statement in luxury transport, and its go-anywhere ability makes it a fine royal conveyance.
"However, with two children and a royal reputation to uphold, Prince William may now have to consider the new Bentley Bentayga as his next family chariot - a brand that also proves very popular with his grandmother".