The RC8T is a very nice, light, well balanced, awesome handling truggy, and so is the XT8, minus a few points on the handling.
What I mean by that is they both handle great in qualifying but in a 30-45 minute main the XT8 starts to feel a little squirrelly.
The RC8T feels a little weak but it isn't, and has stood up remarkably well to the last 5 full race days without a spanner, except to tighten up servo saver on bellcrank.
After a while though you will need to replace rear arms because the hingepins tend to flog out a little, but thats not much of a problem.