What was Ford’s Alan Mulally thinking?

Unless you are selling talking beer openers or donuts, comparing your product to Homer Simpson defies conventional wisdom. When your product is a slow-selling car, your actions are certain to leave people saying, “D’oh!”
Yet, this is exactly what Ford Motor CEO Alan Mulally did recently. He wasn’t subtle, in a public speech he projected an image of Homer over a picture of Ford’s Taurus sedan while being critical of the design and talking up future models as much better. We can be pretty sure that this will not rally sales of the Taurus over the coming months, so has Mulally gone mad or is he actually smart?