I wrote before and I write again, I bought X1 with 17" nonrunflat and now after 17 000km I would not change anything
. I have sport seats also. Ride is very comfortable but also when I am alone in the car and put it in sport mode handling is perfect ( I have EDC/DDC ) .
I would maybe go for 18" just for the better look but I know that would give me a headache with less comfort
, maybe even higher consumption. I can only imagine how 19" uncomfortable is
.