Princess Diana's much loved Ford Escort RS is up for sale - 25 years on from her death.
The historic hot hatch was driven by the People's Princess from 1985 to 1988, just four years after she was married to Charles.
Much less flashy than her later cars, mum-of-two Diana shunned the Royals' Rolls-Royces and Daimlers for the modest Escort.
Auctioneers are not sure exactly how much the iconic motor will fetch, but are confident the mysterious number will be "six figures".
The car would have been driven by the Princess with a detective in the passenger seat.
Silverstone Auctions, who are selling the iconic machine on August 27, said: "We note with interest that whilst Diana's later choice of luxury cars may have been more expensive when new.
"But the Ford Escort RS Turbo far outperforms them at auction, selling in some cases for three times the price of equivalent models."
The 132 horsepower Ford was a replacement for her previous Escort - which was red and had a canvas folding roof.
Silverstone Auctions Classic Car Specialist Arwel Richards added: "We have sold a number of motorcars that have had a Royal pedigree but this car ticks every box in terms of history, rarity, condition and mileage.
"The market adores early Ford RS models.
"When Royal cars come to auction they're usually Rolls-Royces or Range Rovers so to offer the very best example of the working class hero's sports hatchback with such provenance is perhaps unique and therefore very exciting.
"Isn't it fascinating that the Escort RS Turbo was to be synonymous with the white stilettos of Essex but it's first champion was the most glamorous woman on earth?"
After Diana, the car was bought for £2,638 by Ford manager Geoff King for his wife.
In September 1993, it was part of a promotional giveaway by Kiss FM and won by a Miss Jones of Essex.
It was owned from 1994 to 2008 by a Mr Windsor before being added to one of the best Ford RS collections in the UK.
With less than 25,000 miles on the clock, the car is in exceptional condition and comes with a Lifetime Tracker, a spare key, Ford internal memos and the car's registration documents.
