The all-new 2018 BMW X3 was unveiled today at BMW Plant Spartanburg, SC, where it will be produced alongside the BMW X4, BMW X5, and BMW X6. BMW is at home in Spartanburg, SC producing 411,171 BMW X models last year, making it the largest BMW Group's global production facility with approximately 70 percent of the vehicles exported to 140 markets worldwide, thereby making BMW the largest vehicle exporter in the U.S. by value. BMW Plant...