Check this out, the city of Tulsa buried a 1957 Belvedere back IN 57, and it is due to be dug up in about a week for its 50th. Someone will win it as part of a contest from 57, and if they are deceased their heirs will get it. Pretty slick! watch the vid in the linkie
http://www.buriedcar.com/tulsarama.asp
http://www.buriedcar.com/tulsarama.asp