The Toyota EV sold with a Subaru sibling called the Solterra is the bZ4X.
The Toyota bZ4X is a battery-electric compact crossover developed jointly by Toyota and Subaru. Subaru sells its closely related version as the Solterra, making the two vehicles corporate siblings rather than unrelated competitors. They share the e-TNGA platform, which Toyota and Subaru co-developed for electric vehicles.
The bZ4X was first shown as a concept in April 2021 and entered worldwide sales in 2022. Toyota positioned it as the first production model in its bZ, or “beyond Zero,” series. Subaru’s Solterra uses the same basic electric-vehicle architecture, although it has distinct exterior styling, branding, and some Subaru-specific systems and tuning.
A common mix-up is treating the Solterra as a Toyota trim level; it is a Subaru model. The Lexus RZ is another related vehicle, but it is marketed under Lexus rather than Toyota or Subaru. The bZ4X name itself combines the bZ series designation with Toyota’s numerical and crossover naming conventions. In some markets, refreshed versions have been marketed simply as Toyota bZ.