OK, you asked for it.
The TA has Nylon seats, lack of leather, harsh ride and stickers instead of emblems. All of these things make the car less desireable on the street--90%+ of all Viper use.
The majority of the "special" TA items can easily be added to the GTS IF required. For example, sway bars, springs, front brake rotors (and possibly calipers), front corner splitter pieces, rear spoiler and track alignment can all be added. That leaves the different electronic calibration of the shocks, which may or may not be relevant when compared to the 2014 GTS "Race" mode. I strongly suspect that SS Brake Lines and high temp brake fluid (Castrol SRF or Motul) will solve any brake issues--if any--which would be experienced by 99% of any parties on th race track. Most HPDE groups have 20 minute run sessions, and some 30 minute run sessions. All have cool-down periods between sessions.
Recall that the early, pre-production 2013 GTS car given to the mags had many issues: mismatched tires; incorrect alignment; loose driver's seat, etc. So, to continually boast that the "TA is vastly superior" or a substantially different car is not correct. More track-focused out of the box true. However, if you put Randy in a 2014 GTS (or a 2015 with the extra 5hp!) with the Corsa tires (an option) and the Advanced Aero Package, I suspect the cars (TA and GTS) will be very, very close. Add the track alignment to the GTS and the gap would be even smaller. An average recreational driver may not feel any difference whatsoever. My GTS, for example, has all of the exterior carbon fiber aero (including the advanced aero package) and corsa tires. It will get the SS lines (when available) and high temp fluid later. It also has full leather, the upgraded stereo, more sound insulation than a TA and the same wheels as the TA. If I and others wanted the de-contended TA we would have purchased one (for substantially less); however, we prefer to have our cake (excellent handling, same power and drivetrain) and eat it too (more comfort and luxury).
Fortunately Dodge makes different models so we can all choose. Each model has its advantages and disadvantages. Thank you Dodge for building the Gen V!