Hi all

My sedan I put on a while ago some 185/60 R13 tyres.
My problem is that at the back it rubs on the lip.
Me and my dad used a grinder with a thin blade and cut the lip away to give it space.
The damn thing still rubs.
I don't have a spare wheel in the back at the moment to prevent this.
What I suspect is my rear leave springs are soft.
I need to retention them.
But then it is going to be higher from the ground. At the moment I like it nice and low as it is.
I do not want to put on flares as it will spoil the look of the car.
Is there something else I can do?
Any suggestions is welcome.