Thanks for the replies, the offsets I quoted were given to me by the parts dept at my dealer, figures that they were wrong.
2016 535XI Med Blue/Black Nappa, Tints, Vent Seats,
MSport Pkg,M Perf Pkg ,Prem Pkg Enhanced.
2015 535XI Carb.Black/Black RECALLED BY BMW
2012 535XI White/Black, MSport, RETIRED
2011 535I, GraphGrey/Oyster, RETIRED