We all know that just having a website, no matter how great, is not enough to make sales in the automotive industry. LEARN MORE
Pretty much every other sales book out there mentions "Quid pro quo" (from the Latin meaning "something fo something").
I've recently put on my price quote emails a little extra line that says-
When you arrive check in on Facebook Places and Foursquare for an additional $50 off your quote!!
I've told the sales managers and service director when they are doing a write up they should include something similiar.
If you're going to give a discount why not get a little something for it?