Wiggins hit the nail on the head in his post race interview. He rode an absolutely perfectly paced race, but when Tony Martin is on form like that no one on earth can get near him.
It will be interesting to see how Froome rides this, because he'll have to shell Purito, Valverde, Cancellara etc. who will hammer him in a sprint. Should be an interesting race, would be quite something to see GB control a whole race again.