The Toyota Vios is a nameplate used for subcompact cars produced by the Japanese manufacturer Toyota, primarily for markets in Southeast Asia, China and Taiwan since 2002. Slotted below the compact Corolla, the Vios serves as the replacement to the Tercel, which filled the subcompact or B-segment sedan class in the region. It is also successor to the entry-level variants of the E110 series Corolla in some markets such as the Philippines and Vietnam.

The Toyota Tercel is a subcompact car manufactured by Toyota from 1978 until 1999 across five generations, in five body configurations sized between the Corolla and the Starlet. Manufactured at the Takaoka plant in Toyota City, Japan, and sharing its platform with the Cynos and the Starlet, the Tercel was marketed variously as the Toyota Corolla II — sold at Toyota Japanese dealerships called Toyota Corolla Stores — and was replaced by the Platz in 1999. It was also known as the Toyota Corsa and sold at Toyopet Store locations. Starting with the second generation, the Tercel dealership network was changed to Vista Store, as its badge engineered sibling, the Corolla II, was exclusive to Corolla Store locations.