I know where there's a Mexico!!! It's been in storage in a garage for the last 17 years.
The owner emergrated to oz around 15 years ago and rents the house out where said escort is stored. Not sure how you'd go about contacting him but the house is a Medway address, my old next door neighbour.
The address is 65 Beechwood Avenue, Chatham, Kent, ME5 7HJ.
wether this is info is of any use, or wether it'd help you to track down the owner, I don't know, but I often think of that old Mexico just sitting there gathering dust, and how I'd love to rescue it!!!