The BMW X3 G45 is a compact luxury crossover SUV manufactured by the German automaker BMW, replacing the third-generation X3 G01, and the fourth-generation model in the BMW X3 series. Like its predecessor, the G45 X3 is based on the BMW Cluster Architecture (CLAR) platform utilising a range of mild hybrid and plug-in hybrid powertrains. However, it no longer has an electric version built on the same platform. Instead, the iX3 (NA5) is based on the Neue Klasse platform.