Anyone recognize Spy Machine?

[LetsFNgo]

Found this picture online with zero information attached and I’ve fallen in love with it. Judging by the style of the lettering I’m guessing the picture is from the late 60’s(?).
I’m assuming C/A means C Altered but there’s not much more information. It’s built with what I think is an early 60’s Plymouth Valiant but it’s just so damn cool.
Does anyone have other information on either this picture or this car? I can’t make out any of the lettering on the side.