Unsold 2018 models

I've been looking online at Dodge Durangos.  I've found that several dealers in
my area have unsold 2018 models, nice ones.  For a well equipped GT with an
MSRP of $46,000, what can I reasonably expect a dealer to drop the price to
for a car that's been on their lot for two years?

Also, if it's an unsold 2018, do I still get the full term for the warranty? Does the
clock start ticking when the car is first sold?  Or would I lose the two years?