Dealers are willing to reduce their price but you must have inter-state pricing for competition. I got lucky with my new GLC-300 coupe. I purchased a Black 2017 clean history GLC coupe with 1500 miles for about 20% off the MSRP and about 6,000 off the next lowest dealer price for a brand new car. Another thing I would not do is have a dealership add extras. Many of these items can be installed better and for far less. For example, I wanted a trailer hitch which the dealership is charging anywhere from $600-900. Instead purchase a CURT hitch ($130) either install yourself or get it professionally installed for about $150 and you still come out ahead.