The all new 2012 Subaru Impreza is the most fuel efficient all wheel drive car that you can purchase in America. Subaru has redesigned the Impreza from the ground up and kept it the same size but added two inches of room on the inside. Subaru has also given the Impreza a new 148 HP 2.0L engine mated to either a 5 speed manual or a CVT transmission. In fact the new Impreza now has less horsepower than the outgoing model. But does that mean that it is slower? Check out our first drive review to find out.