Gonna need some new tyres soon so thought that as a cheaper alternative to lowering, I could increase the profile by 5 or 10mm to fill the wheel arch a bit more.

I know this will slightly raise the car but do you think it would look better?
Also the speedo currently reads slightly over so that effect is not a problem.

Doing this will keep the centre of the wheel at the centre of the radius of the wheel arch as well which I think is important for it to look right.

any suggestions would be nice and pics too if possible.
Thanks