X3

X3 is a designation used in multiple contexts, referring to different products and media rather than a single universal concept. In everyday usage, the term commonly appears in automotive and video game naming, with other less frequent applications in electronics and mathematics.

In the automotive sector, BMW X3 is a compact luxury crossover SUV produced by BMW since 2003. As part of BMW’s X family, the X3 sits between smaller city models and the larger X5, offering a balance of versatility and performance. The model has seen several generations and updates, expanding features, efficiency, and technology while remaining marketed as a premium, practical sport utility vehicle.

In video gaming, X3 refers to X3: Reunion, a space trading and combat simulator released in 2005 by Egosoft. It is the third main installment in the X video game series, which emphasizes open-ended exploration, trade, and combat within a fictional universe. Subsequent titles in the series include X3: Terran Conflict (2008) and X3: Albion Prelude (2011), continuing the same space simulation lineage with expansions and new content.

Other uses of the X3 designation occur as model names or version labels in various electronics and products, and in mathematical notation where x cubed is commonly written as x^3 rather than X3. The meaning of X3 thus depends on the context in which it appears.