The Toyota B platform is a front-wheel drive automobile platform (also adaptable to four-wheel drive) that has underpinned various Toyota models from the subcompact and compact categories.
[1] The B platform improves on and replaces the NBC platform and sits below the MC platforms.
[1] Automobiles based on the B chassis started production in the beginning of 2005 with the XP90 series Vitz/Yaris hatchback.
[2][3] The B platform was replaced by TNGA-B platform.
[4]