I thought that was the case, I was surprised that none of the international sites have mentioned it in their news posts (at least what I've read so far)
You are completely right, I think the delineator here is actual G1 characters Vs. a EHobby character that has been created to homage an original pre-transformers colour version of a toy, ie, Tiger Track, Blue bluestreak and infamously Exhaust.
I don't have a particular affinity to Road Rage, and unlike Exhaust the character doesn't represent a darker history of motor sports and promotional advertising that bled over to toy manufacture. I am a bit disappointed that Tracks doesn't have this gun, it's clearly an effort by Takara to make the Road Rage model more appealing to a wider audience. The mould changes that people have pointed out, legs and crotch in particular will go a long way to feminising the robot mode. quite well done I think.