Just saw this thread, and I'm not sure if anyone is looking at it any more, but my son is 3 and I have him a 1/10 scale losi desert truck. The think handles great and he hasn't broken anything... yet?
We took it to a track and and one point he ran into the pvc guard rail full speed and sent the thing rolling. I heard several comments about how tough the truck was to not break a single thing with that crash.
On a final note... my son is 3 and it is so good at handling, he really doesn't crash it too much, other than occasionally running into the launch ramps that we use to jump in the yard. I would give it a 9 out of 10 considering the price. The only reason I don't give it a 10 because there is no such thing as a 10 because there is no such thing as perfect.