Hmmmmmmm never thought about it as I have always called it the Dart "GTS". But looking at all of the tail stripes should I really be calling it the Dart GT Sport? But my '69 Dart is a stripe delete and does have a front fender callout GTS, so confusing. GTS is so much easier to say
Actually Gran Turismo Sport, so ad that to your conundrum...
The funny thing about science is that if you change one miniscule parameter you change the entire outcome to the way you want it.