How many Roadrunner GTX's were produced?

Answer 1

Through 1971, the Plymouth Road Runner and GTX were separate models. Traditionally the VIN of the Road Runner started with RM23, and the GTX started with RS23. The base Road Runner came standard with a 383ci engine and a minimum of options. The GTX came standard with the 440ci engine, and was appointed with several standard options. The Road Runner was the cheap muscle car, and the GTX was the luxury muscle car.

This changed in 1972 as the GTX was dropped as a stand alone model and the 400ci engine became standard for the Road Runner. If you ordered a Road Runner with the one of two 440ci engine options that year, the model became a Road Runner GTX, included additional badging as such. There were 672 Road Runner GTXs produced in 1972. 219 were 4spd manuals, and 453 were automatics.

In 1973 and 74, the 318ci engine became standard in the Road Runner. Again, if you ordered the 440ci engine, your Road Runner became a Road Runner GTX. In 1973, 749 Road Runner GTXs were produced. And in 1974, 386 Road Runner GTXs were produced. All 1973/74s were automatics.

So the final answer is: There were 1,807 Road Runner GTXs produced from 1972 through 1974.

The model name for all "U" and "V" engine coded '72-74 RM23/RM21s is "Road Runner GTX". This official model name change is as described by existing Chrysler documentation;

"Road Runner will become a Road Runner GTX when it is ordered with either the 440 4-barrel or 440 6-barrel optional engines"