Excellent low mileage (53K) Lincoln Towncar. Nice, clean, smooth drive

1991 Lincoln Town Car Additional Info:

53,000 miles!!!Very nice Lincoln Towncar, never saw a winter. Zero rust, if you look underneath it looks very clean.
Runs, shifts, drives EXCELLENT. Aluminum rims
Michelin Tires (60% tread). Air conditioning works very well, Just had Heater Core replaced, which is a $700 repair.
This car idles and runs very smooth, floats down the road. I was going to use it as a winter vehicle, but I will drive my 4x4 truck instead.
I was getting 21 mpg on the highway to work.
Passenger windows do not work, both front and rear. Driver windows work fine. Antenna does not go up, radio works but cassette does not. All lights, power accessories, seats work fine
The dent in the right rear door has not creased the paint. It's about the size of a softball. Door opens fine. See Picture. It's about an inch deep?