Do you mean fitting a hydraulic handbrake to a 16v clio?
If so then you should disconnect and remove the load adjustment valve under the car (damn things should be banned anyway) and puumb the handbrake m/cylinder in line with the rear brake linea. All this ideally needs doing with a byas pedal box (2 master cyliners, 1 front, one rear)
YOu wont have a cable though and your car wont (legally) pass an MOT.
I have got many rally cars through MOTs without a cable though. not too hard really.
If you dont mean this, then i cant help!