I don't know mustangs, can't tell you if that's 65 or a 66. BUT, I do know that the Mustang is based on the falcon, so for giggles, I checked out the 65 and then 66 falcon wagons. The 65 has a lovely airy roofline with thin pillars and plenty of glass - a really nice touch is the curved glass in the back, making the D pillar seemingly disappear. The 66 has a wider D panel, the whole thing is probably oodles easier to manufacture and safer in an accident. I think, just looking, that maybe the 66 wagon roof skin and a modified D pillar was used with the Mustang B pillars. I wonder how it would have looked with a 65 roof with all the glass.
