Ive had the FW05R and i just sold it and bougth a V one RRR and the RRR is a much better car and suits my track and driving style.
Dont get me wrong the FW05R is an ASWOME car and i expect the FW05RR to be better
The FW05RR is basically an FW05R just with RRR hubs and new top deck
Medium-large track = V one RRR
Small-medium = FW05RR
Hope this helps