67-69 Dodge Dart, which is what?

Dart GT was the premium Dart in any year made. More trim and standard options. 111" wheel base Hardtop or convertible (all convertibles were on the GT platform

Dart 270 is a step down from the GT but the same body, just different trim. No finish panel on rear but had the 4 pieces of trim (THAT I NEED BY THE WAY) The GT has trim at the top of the body line, 270 trim is down a few inches

Post, 108" wheel base, base model, framed door windows, basicly a sedan
The lightest of all Darts

GTS TOP OF THE LINE was a mid year option starting in 1967.
I believe all 67 GTS were Big Block cars and only had markings on the front fenders.

68 & 69 the 340 & 383 was available and in GTS. Some 69 GTS had 440's "M" code. Had GTS emblems on the inside door panel. Power bulge hood, 68 had 4 ovals 69 had fins with engine call out set in the back