This is a 1954 Riley 1.5, in a field along Highway 25W/70 near Dandridge, Tennessee.
I met the master of the junkyard/repair shop and he tells me he's been offered a "lot of money" for it, but can't sell it as he doesn't have title. The car was put on his property in the hopes of repairing it over twenty years ago, but the owner hasn't been in touch.