Hope it is so. Two of my contacts honestly do not know or aware of a cosworth edition. One of them is really in the know too, obviously not on this one. Thought the head of the RS was that of cosworth, but no real mention or badging. Cosworth can't keep their hands off the RS so I would not be surprised to see a cosworth RS. For me that would be the iceing on the cake. Bet the bottom end can take more than 420lbft to the ground. Hope it sells in the states, if not I'm sure mine will end up cosworth spec for sure.