It should come to no surprise that BMW does not produce their own wheels and rims. The auto brand subcontracts wheel manufacturers around the globe to provide their wheels.
BMW isn't the only company doing this. All major vehicle manufacturers subcontract wheel manufacturers to act as OEM suppliers. This is done because car brands do not generally have the expertise nor resources required to manufacture their own wheels. A wheel manufacturer can mass produce wheels more efficiently, cheaper, and faster than a car brand could in-house. BMW and the wheel manufacturer handle the design and specs of the wheel, while, the wheel manufacturer handles the production.
Below is a partial list of some of the different wheel manufacturers BMW has worked with in the past.
BBS is a world-renowned racing and aftermarket wheel manufacturer. They have produced numerous wheels for BMW including Style 42 seen on the 3 5-Series, Style 65 seen on the M5 (seen above), Style 71 seen on the 3 series, Style 162 seen on the 3-Series, Style 197 seen on the 3-Series, and Style 230 seen on the 3-Series.
Based in Germany, Borbet is one of the oldest wheel manufacturers in the world. Borbet manufactured Style 37 seen on the 5-Series, Style 95 seen on the 7-Series, Style 132 seen in the X5, and Style 179 seen on the 3-Series (seen above).
Cromodora is a major wheel manufacturer based in Italy. They produced Style 18 seen on the Z3, Style 69 seen on the X5, and Style 71 seen on the 3-Series (seen above).
Based in Germany, Ronal is one of the largest wheel manufacturers in the world. They produced Style 132 seen on the X5, Style 199 seen on the 3-Series, and Style 214 seen on the X5 (seen above).
What other style do you know are made by these brands? Comment below.