As for the Funabashi circuit, only approximately 40 races were held in three years.
So there is considerably few it, and the then document becomes precious.
I looked for an animation in Youtube, but only four were found.
Because it is summarized in a playlist, I write a URL.
http://www.youtube.com/view_play_list?p=3690DB3E8929802C
In the then race including Japanese cars such as Honda S800, Datsun Bluebird SS, Subaru 360, Prince Skyline 2000GT, Toyota sports 800,
Ford Cortina, Morris Mini Cooper S, Lotus Elan, Jaguar XK-E, Chevrolet Corvette.
I acquire the aerial photograph of the Funabashi circuit of 1966 and the aerial photograph of current ruins.