I have never heard of the Mark Series being sold under the Continental make. You do put forth a very convincing argument, but I'm concerned that they are always referred to as Lincolns and I'm hesitant to recommend listing them under the Continental make. I've only ever known them as Lincolns, and my instinctual reaction is to leave them as they are currently listed.

On the other hand, I know I get frustrated when people refer to "Chrysler Imperials" when talking about what is properly the Imperial make. Following that line of thought, I would support listing them as Continentals.

Ultimately, I think I could go either way.