I would vote for the TC4 but since you didn't like it I'd recommend the HPI Sprint 2 carbon chassis setup. You get a center "mid-engine" layout and parts are available since HPI is slowly getting things trickled in. You can upgrade on the Hot Bodies TCXX shocks and parts later if you like such as arms and axles, otherwise I'm fully satisfied with my Tamiya TL01 modified for drifting.