When you pull out all the stops to make car buying the best it can be, potential customers are more likely to choose you. This is "good carma". It's Car Shop's unique way of thinking and what they build their business on to make them stand out from the rest of the car buying market.  
I was entrusted to educate new starters and Carshop's partners about the company's USP by writing all about good carma in their brand guidelines, so everyone understood its benefits and knew how to spread it, regardless of their role within the business.