I have the PP and it rides on 19 inch with 35 profile tyre. These cars (along with the std GTI) have adaptive dampers - normal, comfort, sport. So depending on what you driving habit is, you can change the profile to suit. I leave mine in normal and it rides very well even on those roads that are rough. I sometimes change to comfort and it helps a lot over rougher ground. I previously had an Audi A3 on 18 inch 40 profile tyres and that was very firm.
With the slightly lower profile tyre you might get a slightly firmer ride in all modes over the std GTI, but I find there is no problem as a daily driver - I do try to avoid the manhole covers/potholes though as you will feel them. I haven't taken it on an extended trip so can't comment on tyre noise.
As a daily driver, you can't go wrong with either model, its good to have the power when you need to make that gap in traffic, yet it is just as happy driving along with traffic flow.
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