i don't know if it would be a mass change since i don't know how many they are but i saw some " made for CDN " Mercury Grand Marquis being called Ford Grand Marquis. all the Grand Marquis i've seen to date were wearing a Mercury emblem on the grille and trunklid. i know they were sold thru Ford dealers but all dealers i know here were Ford/Mercury ( even my grandfather's brand new at the time 1987 Mercury Topaz came from a Ford dealer ) with some having Lincoln as well

http://www.canadianblackbook.com/used-cars/vehicle/search/ma/Mercury/mo/Grand%20Marquis