Just look at the metal dash for the dip where the 140 speedo rests. Since it’s not a deluxe interior car, if there’s a dip in the dash, it must be a GT. (In ‘65)
As the drill sergeant said, "I taught you everything you know. I didn't teach you everything I know."
"Human beings, who are almost unique in having the ability to learn from the experience of others, are also remarkable for their apparent disinclination to do so."
- Douglas Adams