I spent a few hours last night doing extensive research about the impact of changes in wheel offset. The offset of the Lugano wheels is +32mm. Stock is +40mm. That means the center line of the wheels is pushed out 8mm. That widens the stance of the car about .6 overall, .3 inches on each side. Every source I checked indicated that this kind of change was too small to be concerned about.
In any case, wheel offset does not affect camber and caster, so the alignment does not have to be changed. Scrub radius is affected, but, again, the change is minor and not of concern. If anything, the handling will be improved slightly by the wider stance. The minor league change in scrub radius may impact the longevity of the tires, but again not by much. There may be some unpredictable impact on the wheel bearings but given the small change probably not an issue.