The BMW X3 is a compact luxury crossover SUV manufactured by BMW since 2003, based on the BMW 3 Series platform. Now in its third generation, BMW markets the car as a Sports Activity Vehicle, the company's proprietary descriptor for its X-line luxury vehicles. The first-generation X3 was designed by BMW in conjunction with Magna Steyr of Graz, Austria—who also manufactured all X3s under contract to BMW. BMW manufactured the second-generation X3 at their Spartanburg plant in South Carolina, United States. The third generation of the BMW X3 is manufactured at BMW South Africa's Rosslyn plant, a facility that underwent a major upgrade to prepare for the X3 production, replacing the long-running 3 Series production in the plant. About 76,000 units will be manufactured there annually. The car was the first mid-size, premium SUV on the market. In 2008, BMW started competing with the Mercedes-Benz GLK-Class (renamed GLC-Class since 2016), and numerous other SUVs in this segment. The X3 is smaller than the X5 and X6, and bigger than the X1 and the X2. An all-electric variant is sold as the BMW iX3.
