The HotBodies Cyclone S is more aimed at a novice getting into the sport or bashing around a parking lot. To handle decent power it will need drivetrain upgrades,.... plus being a plastic tub it will flex a lot.
The Sakura Zero S i have not seen though it is a more recent model...
I would go the Sakura.
Dont forget about the other cars out there... ie TOP Photon, HB TCX, XRAY T3'11...
Spending a little more now will save you in the long run
T.O.P. Racing Australia www.topracing.net.au