I think the only thing "GTX" on that car is the emblem. It may be some sort of South American version of something, maybe akin to the Australian "Hemis" which are 6 cylinder performance cars but it is in no way anything remotely resembling a 426 hemi B-body Chrysler product.
The engine looks like an old ARDUN cylinder headed engine. Anyone good at old flathead trivia here?
As for being a Hemi GTX, this is kind of like saying I have an M4 parked in my bedroom. An M4 could be this:
or it could be this:
I know which one I'd prefer for "home protection."
