Daniel ,
in an attempt to bring this round to helping you out.
Are you thinking of buy this type of car? as some of the comments made about its handling should be of interest to you. This will affect how it tows , if indeed it is capable of towing.
Secondly , if you feel it would make a tow car , have you checked you can actually get a tow bar for it?
As some have alluded to , if its not considered to be a suitable tow car few places would actually make a one for it. That in itself would make it difficult to consider.
Ford themselves may be a good starting point to check this out.
Finally folks on this site are generally very helpful and quite often will pass on info that triggers you to think differently.
Johns initial posting , whilst didn't directly answer your specific question , should hopefully have prompted you to investigate the Cougar suitability in greater depth , to make sure you are fully sure of its ability to fit your needs.
Hope you are successful in your quest and please keep dropping by this site as it may help you in the future.