It's rare to receive an offer as straight forward and simple as this! Here's how it works: bring a friend or family member to your salesperson at one of the 5 Harnish Auto Family dealerships and when they purchase a new or used vehicle, we give you $250 cash! Â Bring in someone else and receive another $250! After that, we reward you with $500 for each new customer you bring in during that calendar month!