I’m sure the agreements are different with every manufacturer but Ford and Chevy have already spoken out against these dealers and said there will be repercussions. Nothing has been done so far. A dealer can’t have an agreement to sell a product at whatever price they feel like selling it. It directly will affect the reputation of the manufacturer. The manufacturer must have the ability to do something to combat what is negatively affecting them including the cancellation of the right to sell their products and use the Ford name.
There are also consumer protection laws for each state and many of the current practices would be illegal but who is going to sue first?
Reasonable price, territory, and customer restrictions on dealers are legal.
www.ftc.gov
If a manufacturer, on its own, adopts a policy regarding a desired level of prices, the law allows the manufacturer to deal only with retailers who agree to that policy. A manufacturer also may stop dealing with a retailer that does not follow its resale price policy. That is, a manufacturer can implement a dealer policy on a "take it or leave it" basis.