1997 Park Lane Edition-What is it?
 

I just helped my son purchase a 97 Grand Marquis LS Park Lane edition. 75k original miles garage kept for 19 years - however the newest owner had it outside and it's been sitting for the past 6 months. It runs but needs normal 22 year old work done to it.
Does anyone know if the LS is common in this Park Lane edition? I've been searching the internet and all I see is that the Park Lane edition is a GS.
Anyway - what differs/what do you get with the Park Lane edition? Does it need different sized tires, etc. There isn't much out there about it.
Thanks for your help!