Yes, and no. Depends what year for the Marquis. From '98 the caliper is larger in the front, that is why they have 16 inch. But, with a 1.25 spacer and grind a little off the top of the caliper, you can fit 15 inch.
Yes
Yes. 1998-2010 Crown Vic, 1998-2010 Mercury Grand Marquis and 2003-2004 Mercury Marauder all have the same hood.
Why not. Should fit. same car.
Any Ford Crown Victoria or Mercury Grand Marquis. Very reliable and cheap to buy.
Mercury Grand Marquis
Yes.
Why not.If it fits, then its ok.
No. The trunk is to small.
No, the Crown Vic and Grand Marq used different styles of fenders
No, they are of a different design
Crown is by Ford, and Marquis is by Mercury. Same company. Just the body style. Like Chev and Pontiac.
Mostly. But there are some things not the same. Depends what year.