Hi,
first time in this forum.
Car is X5 3,0sd -08 with two tone aerokit, mudflaps, 9 x 20" alloys and little oversize 275/45-20 Continental Cross Contact UHP tires.
I was afraid about 20", but luckily they seems to be more comfort and guiet than original 18" runflats.
At this point one battery changed (allthough original was so called AGM battery) and right upper wishbone changed from 0 to -30min to get right camber correction in front.