I am very partial to TF. Have had many. The quickest way for me to tell from a distance is 55.2 fender emblem was "below the belt", 56 moved above the belt. 55.2 Hood emblem also "down" and 56 is "up". Less obvious is: 55.2 has a white backgrount paint and 56 has black.

I believe there are some other subtle differences. (location of VR?, etc) Grille is the same. The VIN helps smile
I like the Frenched headlights, 12V, V8, open drive line, "wrap around windshield".................I like the Tri-five the most.

Right is right, even if everyone is against it, and wrong is wrong, even if everyone is for it. - William Penn