rear tires not centered in body

Ok. We are good on A body rear. Is the measurement from the inner wheel wells the same to the tire? It looks to be as the seams on the trunk extension line up with the inner tread rib on both sides however the right bottom quarter is into the tire more than the left as your problem is described. What would be good to know is the measurement from the tire to the outside of the wheel lip on both sides. Looking down the side of the car does it look the same as far as body lines on both sides?