See also:

Tire identification marks
Tire size 255/50 R 19 103 Y 255: nominal width in mm 50: aspect ratio in % R: radial tire code 19: rim diameter in inches 103: load rating, not for ZR tires Y: speed rating, before the R on ZR ...

Capacities
...

CD/Multimedia
CD/DVD drive Music collection External devices Tone Telephone Office Contacts BMW Assist or ConnectedDrive ...