qv wheels on a Mondial: geometry?

I currently have a set of 17" Speedlines (profile) but ran across this photo ( http://www.ferrari-fahren.de/ )of a 3.2 with the 16" qv wheel that also looks pretty good.

The qv wheel offset would have the wheel out a little on a 3.2, as you can see. Intuitively I would guess that the sl different offsets would cause a 1. little bit more wear on the bearings and 2. change the steering response, but not sure how.

If the wear was negligible and the steering response was appreciably increased, this may be a consideration. Ideas?

thanks
rt