Diamondback makes em I think. This looks like them. http://www.widewhitewalltires.com/new_products.htm
did that car have tenn plates on it? the reason i'm askin is i talked to a guy nashville who had tarz that were square across the top like that, not rounded edges and were a radial. not sure if thats the car,but the name if i remember rite was some kind of japan name. i think. sorry not much help.but the look of that tar is spot on!