Guess.

'69 Valiant 100 4 door with the incorrect mirror on driver's door and Dodge 14'' full wheel covers circa '72 and up.
Radial tires and wiper blades are not original as well.
It's probably an November or later in the model year build car judging by the door handles, and with headrests, probably after January 1st 1969 when they became mandatory.
The headrests look too big to me, but it might be an optical illusion.
Probably a slant 6 car, If so, the original wheels might have been 13'' and they would have been changed also.........
Nice car, too bad it has a small ding in the hood.