school me on differences between Dart, GT, and GTS?

'Chick Magnet'

1967 Dodge Dart {2-Door Sedan} Base Model
* 170/101 HP ~ 6-Cylinder

Shipping Weight ........ #2750 lbs. ~ 101 HP = 27.23 Wt/HP

Hello ...... NHRA 'M/Stock' {26.00 to 27.99 Wt/Hp} in 1967

Now, that's what I'm talking about.