[OBC John]

Hope to take delivery of my 2012 3.0D XF Sportbrake Portfolio on the 4th Feb......great forum for all the info'......currently looking into the fuse box corrosion issues elsewhere on the forum.
My previous car Ford Mondeo Tit' X with the ultra low profiles fitted, I used to run them +4psi all round. That would give me better tyre wear and lower fuel consumption (less rolling resistance), however, there is a trade off in smoothness of ride. You should find the car more responsive in steering. However, there is a small change in the handling of the car, in that the progression from gentle slide into skid is more pronounced.
Neil

Hi Neil and welcome. Why don't you expose yourself officially in the "intro" section!