1st Gen Barracuda ?

There's a wiring difference between 64 & 65 models. On one, when you turn on the headlights the park lamps go off, on the other the park lamps stay on. Can't remember which is which though. I think they stay lit on the 64. My mom had a 65 at the same time I had my 64 & this was one of the differences I saw.

On every 64 I've looked at, the "security panel" in the back extends almost all of the way out to the edge of the fender in the trunk on the right side. Every 65 I've looked at has it stop at the edge of the inner panel like on the left side.

I could be wrong about both of these being limited to the different years, but this is what I've observed.

Also, the Commando V8 wasn't supposed to be available until 65 but somebody posted on here recently saying they had a 64 with an original Commando engine, so maybe they put some in late in the 64 model year?