67 Dart Passenger Door Window

Most 2 door cars have always been built both post and no post. My son-in-law asked for an explanation of difference while we were strolling around a cruise-in gathering. just so happened we were amist the 55,6,7 Chevy Belairs.Very easy for me to point out the differece where they were parked side by side. LOL
A post car is heavier and stronger and has less wind noise that a no post car.
His next question was "Are there post Barracudas ?" The annswer is no.