Hi,
the 120A escs of Hobbywing are really good working ones (SCT-Pro or WP-SC).

The motors we tried, but i am not fixed yet:
- Turnigy 2100 and 2300kV are the cheap ones but ok and well working
- SkyRC Toro X8 2250kV very powerful
- Hacker 2100kV very powerful but expansive

2300kV is really the maximum, the cars are very fast, I think 2100kV might be the the right choice to drive fast and have fun