I am having the same problem with my two week old 2012 Focus. The transmission shudders on acceleration and sometimes "clunks" between 1st and 2nd gear. Worse is I was at a stop sign and went to quickly accelerate and the engine wound up quickly with no power to the wheels. The power then came in over the course of about 3 seconds. With the oncoming traffic clearly a dangerous situation. This is an unsatisfactory situation and I am amazed that Ford is letting these come out of factory like this. Trip to the dealer coming but going to need a definitive solution to this.