From Toyota Wiki

The vehicles listed below are primarily sold at the Toyopet Store locations throughout Japan. Locations within Tokyo and Osaka may sell different models based on local market conditions.

The Toyopet brand was originally used as the name for all Toyota vehicles, starting with the Toyopet SA in 1947. The Toyopet name continued to be used in Japan until the introduction of the T130 series Toyota Corona Mark II in 1978.

The Toyopet name is now only used to denote the store locations within the sales network.