Interesting that there was speculation that the internal combustion engine would be obsolete in 50 years!
TULSA, Okla. - A Plymouth Belvedere that was buried in a concrete vault nearly 50 years ago as part of the state's golden anniversary celebration will be unearthed in 2007 as part of the Oklahoma centennial festivities.
The 1957 Belvedere is underground next to the Tulsa County Courthouse. Also buried with it were five gallons of gas and a case of beer.
Old news reports indicate the gas was buried in case internal combustion engines became obsolete by 2007 and no fuel was available.