I need to buy a new buggy since my old one can't take the pressure of another season of racing.

The problem is that I need some advice to help me decide. I have narrowed it down to three (four) buggies:

HoBao Hyper 8 pro (UK)
HongNor Jammin X1-CR Pro
HongNor Jammin X1-CR Team edition
Mugen MBX5

So all kinds of feedback and pro's and contra's would be much appriciated.

It will only be used on tracks, no bashing or streetracing.