>I don't think so. Here in Canada, we have both. I haven't eaten either in decades, so I don't remember them very well, but since we have both, I assume they aren't the same thing. I seem to recall a Mars bar as being sort of creamier. And doesn't a 3 Musketeers bar have nuts or something?

If they are anywhere true to the original, you get 4 of them for the price of 3.