Įfforts were made to stabilize Miss Belvedere's condition, including essential suspension repairs, with the hope of placing her in a museum. However, the vault was breached by long term water intrusion, that submerged the entire vehicle, causing significant cosmetic and structural damage.

Reflecting the Cold War tensions endemic in late 1950s America, the enclosure – built of poured in place concrete and sprayed with pneumatically applied gunite – was advertised as having been built to withstand a nuclear attack. Nicknamed Miss Belvedere by a member of the committee organizing the 2007 event, the car was unearthed on June 14, 2007, during the state's centennial celebration and publicly unveiled the next day. A matching automobile had been awarded in a separate contest a few days prior. The unnamed vehicle was intended to be a prize awarded upon the vehicle's unearthing to the individual, or their descendant, who came nearest to guessing Tulsa's population in 2007.

The car, a desert gold and sand dune white two-tone sport coupe which displayed only four miles on its odometer, was entombed as part of the city of Tulsa's 'Tulsarama' Golden Jubilee Week festivities celebrating Oklahoma's 50th year of statehood. Miss Belvedere is a 1957 Plymouth Belvedere that was sealed in an underground vault on the grounds of the Tulsa city courthouse on June 15, 1957, as a 50-year time capsule.

The vault tulsa