I've been tasked with the job of selling my father-in-law's Mercedes. He's suffering from dementia and can no longer drive. The car comes with FMSH, has done under 80k, and is in vgc considering its age.
The car has had one previous owner. He's owned and pampered this car for 23 years, with every bill etc. on file.

Your advice on how to market this would be much appreciated.