2005 ford Crown Victoria police interceptor 4.6L

2005 ford crown vic Police Interceptor package. This was a fire chiefs car, so it was not abused as much as a police car. It was also stored indoors at the fire department and the condition is very good for a car that spent its life in Pennsylvania.
It has current PA state inspection and emission stickers. The tires are all matching Goodyear eagle rs-a with about 7/32 on them. this still has some left over lighting in it. It also has a matching full size spare tire.
Has a new battery, new fluids and is a daily driver.
The reverse is starting to sli, it will engage on a level surface and back up but will not back up a grade. I just pre plan my parking before i park in a parking lot. All forward gears work just fine and i have been driving it with no issues.
Thank you