The xB debuted for the 2003 model year as one of the first vehicles sold under the Scion brand, and it quickly became the nameplate most closely associated with the brand’s early identity. Its original design was defined by a compact, upright, boxy shape that emphasized interior room, easy customization, and an unconventional look aimed at younger buyers. That first-generation xB ran through the 2006 model year, after which the nameplate temporarily disappeared from the lineup.
The xB returned for 2008 in an all-new second generation with a larger footprint and a more conventional small-wagon layout while retaining the squared-off styling that made the original distinctive. This later version shifted the model toward a more mature, mainstream role without losing the practicality and personalization that had made the badge notable in the first place. Over time, the xB became one of the best-known examples of Scion’s mono-spec, accessory-friendly approach to the market.
The nameplate’s final chapter came in 2015, when the xB ended production as Scion itself was being phased out. Because the badge appeared in two separate production periods separated by a model-year gap, it should be treated as a discontinuous nameplate history rather than a single uninterrupted run. The xB remains notable as a cultural shorthand for the early-2000s boxy compact-car trend and as one of the most recognizable vehicles ever offered under the Scion name.