Plattner Automotive Group — Sale of used car, sold as new with contract

We bought what we were told was a new, never plated car, that had a full factory warranty.
We found out later on that the car had been plated and that our warranty was going to expire 2 years earlier than expired.
When I called the dealer and spoke to the GM, I was told that the previous manager lied and there was nothing we could do.
I tried to call the owner, Doug Plattner, and was hung up on twice.
Dealership refuses to extend the warranty and back their product.