Bigger alloys mean needing to lower suspension? Also Window tint question on chrome sill'd cars..

Hi all,

short intro - basically have zero clue about any car, let alone Audis, but I'm about to buy my second Audi and want to change a couple of things about it.

I have been Googling and detected some comments that threw me a bit, so I've bit the bullet and joined up to ask you guys.

I'm looking at getting a 2016 A4 Avant Ultra Sport this week and I want to tint the windows and upgrade the alloys from 17inch to 18 or 19inch. Even second hand alloys as long as they're not too aftermarket looking. Want to maintain as much of a factory look as possible.

I read comments saying that 18inch and larger alloys look silly on the Sport model as it sits up too high and will sit even higher on larger alloys. Is it generally the case that you need to lower the suspension to make the car look decent on larger wheels?

Other question is about window tinting. Usually I'll go as dark as possible, and this was fine on my A3 Sportback as it was grey with black window wills. This new A4 will be Scuba Blue with chrome sills. Do you think a dark tint would look quite poor and I should go lighter?

Any ideas on either of these?

The back of the Sport models do look like they sit up quite a bit.. even though as MOA4BP said earlier it's been lowed 20mm. Not sure I'd want to make that worse. Really would be less hassle just buying an S Line if I could have found one in blue with low mileages anywhere nearby. Just not many around..