well, what do you expect from me? :-) Before I go nuts figuring out my own solutions.... I've got a few ideas. It's amusing how far this platform has been taken by tamiya themselves, yet...
I mean, there's the TT02 RR, which gets you adjustable camber, sealed oil filled diffs, an aluminum driveshaft. The TT02 Type S, has "modern" suspension. Hard and soft tub choices. Then there's cars that go all the way down to soft tub spring damper setups.
And then, it's sold as a off road buggy too.
I find it an interesting platform. I'm suprised "basic" racing features, aren't common on it yet.