The one-of-a-kind Ford Escort that Princess Diana drove is being auctioned off.

The late Princess Diana’s black Ford Escort, a member of the RS Turbo Series 1, was one of 130 items up for auction on Saturday at Britain’s Silverstone racing track. Diana owned the vehicle between 1985 and 1988. It is thought to be the only example of the model made in black, according to Silverstone Auctions, which expect it to fetch more than 100,000 pounds ($118,000).The RS Turbo Series 1 was usually made in white but the royal family police guard asked for Diana’s to be painted black “for discretion”, the auctioneers said.For the princess to drive the vehicle, which has just under 25,000 miles (around 40,000 km) on the clock, was “a very brave choice,” Arwel Richards, Classic Car Specialist at Silverstone Auctions, told Reuters.”All the other members of the royal family would be driving around London in the back… of an official car… and she’s driving in a car… that you would see on a housing estate not outside the palace.”Next week marks 25 years since Diana died, aged 36, when the limousine in which she was a passenger crashed in a Paris tunnel as it sped away from paparazzi giving chase on motorbikes.Other lots at the auction, taking place in conjunction with the Classic – a three-day motor racing festival at the Northamptonshire circuit – include a Rolls-Royce convertible once owned by Bee Gee Maurice Gibb.The singer, who died in 2003, bought the black 1973 Corniche in 1979. The family kept the car, which was outfitted with a crimson leather inside, until 2012. A 1973 Rover P5, driven by Margaret Thatcher to meet Queen Elizabeth after her 1979 election as British prime minister, is up for auction with a price estimate of 35,000 to 45,000 pounds; a 1988 Volkswagen T25 Caravelle GL 112 minibus, in which Hawking was a passenger, is being sold without reserve.