It has to be vague, because everyone's exact idea of what a car should do to his/her inputs varies quite considerably. However, the MX-5 is predictable, in so much that any driver of any competence will know beforehand what the car will do to given inputs. Controllable is it's response to inputs after the event you predicted would happen above, did.
The XRG isn't an MX-5, so MX-5 settings on it won't produce the same end result. If I put Lotus Esprit settings in the FZ5 I would expect it to handle (or not, depending on your perception of Lotus) like an Esprit.