I suppose but I'm coming from a different standpoint. If you remove all four shock absorbers and springs, you should be able to move each wheel through the entire range of suspension travel without any part of the wheel/tire hitting any part of the car. You can stiffen the suspension and or reshape the fenderwells such that wider-than-original wheels do not contact the body. You must be really after appearance at that point because even race cars are not set-up that way. Murcielago and Enzo wheels tuck nicely into the fenders.
To your last point, increasing roll resistance will help reduce wheel contact with the body when turning, but it won't do anything to reduce wheel contact with the body when hitting a dip or ramp or speedbump, etc.
420SEL original or performance springs might be an alternative for you.