The Z3 is designed to be easy to manufacture as either a left- or right-hand-drive car. Consequently, the factory installs a power mirror control on the driver's side of the car and a plastic 'blank' on the passenger side. The LeatherZ Mirror Blank is a direct replacement for the crummy plastic piece that came with your car from BMW. Our Mirror Blank adds a touch of detail that any enthusiast would be quick to notice. Pry out your current mirror blank and snap the LeatherZ Mirror Blank into its place. Fits both left- and right-hand-drive cars.