Ron has allowed me to present a quick video of the R Class.
I of course don't model VR but comparing the sounds to YouTube videos I would have to say that it certainly does sound like an R Class.
Also, since the sound version has a QSI Titan chip then this would be the first QSI Titan steam locomotive sound set.
Here is the Eureka Models VR R Class video:
And here is a real VR R Class YouTube video:
A final note, the actual model R Class has a bit more bass than the sound in the video of the model.