A 4 cell GP 3700 pack if you ask me- slow it down a bit.
Thats a serious motor and the zx5 is quite a light car to begin with, a LiPo pack would be - INSANE.
Having said that, I will be reviewing the
Trakpower LiPo pack soon, and I'll certainly put it in the ZX5 with a brushless - just to see.
