Since their introduction in the mid-nineties the BMW Z3 and its Z4
successor, along with their M and coupe derivatives, have always been built at BMW's Spartanburg, South Carolina manufacturing facility. That all looks set to change with the next-generation model. Given that the biggest market for BMW's SUV models is in North America the company has already previously announced plans to shift X3 production from MagnaSteyr's plant to Austria to Spartanburg, BMW will consolidate all SUV and CUV production there. Capacity in Spartanburg is being bumped from 140,000 to 200,000 units a year to accommodate this, and production of the next Z4 will shift to Regensburg, Germany. The upcoming X6 will be added to Spartanburg's output as well.
[Source: Just-Auto - Sub. req'd]