Edmunds launches price guarantee for online car shoppers 
Automotive News.

The article states that 600 dealers have already signed up. 

Here is another third party, that is going to dictate what price dealers should sell their product.  These dealers are going to pay Edmunds for the privilege.  

When are dealers going to say, "Enough!"?  When are dealers going to develop their own marketing where they aren't buying leads from third parties and not having to tolerate parasitic companies like TrueCar, Costco and now Edmunds?