Scion exists in a corner of the vast Toyota empire, and one of its missions was to bring customization to its core fans--tuner kids who want a unique vehicle, or at least, one as individually tailored as a mass-market machine can be today.
All xB hatchbacks start with a reasonable set of standard features, including power windows, locks and mirrors; air conditioning; and new this year, a Pioneer audio system with iPod/USB connectivity, Bluetooth, HD Radio, an auxiliary jack, and RCA ports for subwoofer plug and play. The addition of Bluetooth is a big deal, as the xB lacked an integrated system for so long.
From there, the options list blossoms with dozens of add-ons. There's an Alpine 200-watt audio system with a 4.3-inch LCD touchscreen with inputs for up to three amplifiers, as well as a navigation system. The list also includes a handful of performance accessories from Toyota Racing Division such as suspension and shift kits.