A bulletproof Rolls-Royce Sliver Shadow used by Princess Diana on her first trip to the U.S. is expected to fetch more than $2 million at auction.

The Rolls-Royce Silver Shadow was bought new in 1979 by the British embassy, but it didn’t come into service until 1982, after engineers spent three years and 200,000 dollars armouring the luxury car to repel bullets, grenades and even small bombs.

The car is original except for a new silver paint job. It features a 600-pound bulletproof windshield and nearly equally hefty rear window. Side windows, also bulletproof, are sealed against possible toxic gas exposure.

The car is going to be auctioned off on eBay by the Volo Auto Museum near Chicago on November 9 – exactly 27 years after Diana’s visit.

The auction will have no reserve with some of the proceeds going to the Children with Cancer UK charity that Princess Diana started in 1988.

Via dailymail