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Princess Diana was not just a blue blood, she was a blue oval fan.

The Royal enjoyed doing the driving herself and had a penchant for Fords, and not just the fancy ones.

Prince Charles famously gifted her a Ford Escort Ghia economy car as an engagement present in 1981, and she had several more examples of the model over the years, including a convertible and one that was a bit more exciting than the rest.

In 1985, Diana ordered a Ford Escort RS Turbo Series 1, which was the hottest version of the hatchback available.

Diana Ford Escort RS

The Escort RS Series One was sold from 1985 to 1988. (Silverstone Auctions)

The RS featured a five-speed manual transmission, sporty Recaro bucket seats, a racy body kit and a turbocharged 1.6-liter four-cylinder engine rated at 130 hp, which was considered quite potent in the day. The low-volume model was designed to homologate the Escort for use in rally racing.

Diana escort cabin

The car features sporty Recaro seats.  (Silverstone Auctions)

Ford further customized the car for her by swapping its grille for one from the standard Escort that had a more low-key style and painting the car black, while all the other 1985 Escort RS Turbo series 1 cars were white.

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Diana Escort engine

It's 1.6-liter turbocharged engine is rated at 130 hp. (Silverstone Auctions)

It is believed to be the only one built at the factory in that color, and was also updated with wiring for a two-way radio in the glove compartment for the security detail that traveled with her.

Princess Diana convertible

Princess Diana had a convertible Escort before the RS Turbo, but was advised to switch to a hard top for security reasons. (Tim Graham Photo Library via Getty Images)

Diana was often seen driving it around with her children onboard and kept it until 1988, when she returned it to Ford with around 6,800 miles on the odometer.

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Diana was photographed driving the Escort with Prince William in the back seat.

Diana was photographed driving the Escort with Prince William in the back seat. (Tim Graham Photo Library via Getty Images)

It was then sold to a Ford employee and later given away as part of a radio contest. Its current owner purchased it in 1994 and the mileage is now at 24,961, but someone new will be able to add to that total soon.

Diana's car was equipped with a grille that's different than the standard model's.

Diana's car was equipped with a grille that's different than the standard model's. (Silverstone Auctions)

The car is set to be offered by Silverstone Auctions at its upcoming event in England on August 27. While the Ghia was sold for 47,000 pounds last year, the auction house expects the RS to go for over 100,000 pounds, or about $122,000.

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The current record sale for a 1985 Escort RS Turbo stands at 60,000 pounds in 2015, which was the equivalent of $130,000 at the time. That car was a standard white model that had been driven just 5,568 miles.