The Metaphor: Uniqueness as a Competitive advantage

So if a hot dog is a metaphor for business, what makes your dog different? This is your competitive differentiator. For example, there are lots of car dealers that sell the same make and model of the car you own. What one thing, perhaps unique compared to the other dealerships, did your dealership do to make you buy the car from them? It can be price, location, customer service, speed and any other feature or benefit that separates them from the other dealerships.