I take it you mean you want to flare the arches, as there is no return edge / lip to roll. I would advise you to see if there is a camber kit available for the Clio, and not to just put washers behind the stub axles to get the angle your after. Only my 2 pence worth.Trying to find someone at the minute to roll the arches! And need to look into rear camber
tyres look to big to me still, sure you can't get 185's for more stretch and less balloon looking?