I remember that from the Chicago auto show. Late ‘60’s and ‘70’s Mercury almost always had a live Cougar in a cage or on a car.
I guess you might be able to special order a milage maker 6 in a Fairlane. Haven’t seen one. The ‘55 would have at least the 272 and the ‘56 behind it would have had a 292, or perhaps the 312 Thunderbird special. I have a ‘57 with a 235 6. Think Jacks DelRay also has the 235.
Wow that dealership was way ahead of the times, foreshadowing Renault, then Peugeot/Citroen ownership of the Jeep Brand?