Except you have to go back in time about twenty years to get it.
The Caramac bar still exists, but like most candy bars today, the recipe and the taste has changed drastically (for the worse), as the company changed hands over the years. It's even a different colour nowadays.
Total shame that kids today have no idea how most of the more popular candy bars used to taste. This is true of almost any candy bar you can mention. They taste like they are full of wax, grease and cotton seed oil or something ... oh, wait a minute, they are!
I usually like good dark chocolate, but recently I am totally obsessed with this.
It's sort of a cross between Reese's Peanut Butter Cups and Three Musketeers -- it has the same general form as a Three Musketeers bar, but it has a layer of peanut butter in between the chocolate and the confection, and I think the confection is also a chocolate/peanut butter flavor.
It sounds a little strange, but I really like them.