Waymo's 2027 Tokyo robotaxi fleet will be Toyota bZ4X EVs with autonomy hardware fitted at the factory

Waymo has announced that its robotaxi service in Tokyo, scheduled to launch in 2027, will run on Toyota bZ4X electric vehicles assembled in Japan. According to The Verge, the cars will be built at Toyota's Takaoka plant in Toyota City, Aichi Prefecture, and fitted with Waymo's sensor and computing hardware during production rather than converted afterwards.

The decision extends a strategic partnership between the two companies that was first announced in April 2025.

A new way of building the fleet

Until now, Waymo has equipped its vehicles through a multi-step process: buy finished cars from a manufacturer, ship them to a separate facility, then equip them with sensors, computers and extra wiring. The bZ4X programme changes that. The Verge reports that Toyota's plant will handle the entire build, integrating Waymo's autonomous hardware directly into the production line.

Doing so could remove duplicated labour, custom mounting parts and extra transport, and The Verge suggests it may lower Waymo's costs, a meaningful consideration for a company expanding into multiple cities and countries.

A fourth vehicle platform

Waymo currently operates two models, the Jaguar I-Pace and the Zeekr RT, with a third based on the Hyundai Ioniq 5 expected to enter service soon. The bZ4X becomes the fourth, and according to The Verge the addition is meant to show that Waymo's autonomy stack, branded the "Waymo Driver", can be adapted to many different vehicle types rather than tied to one manufacturer. The company has consistently presented itself as a supplier of driving software and systems rather than a carmaker.

Japan first, then other markets

Waymo plans to begin testing and validation work in Japan starting in 2027, before the Tokyo service goes live. After that, the bZ4X-based vehicles are set to reach the United Kingdom as well as other international markets for robotaxi operations.

Two further threads of the collaboration also emerged from the announcement. Waymo says it continues to explore putting its technology into Toyota vehicles that individuals would own themselves, and it is working with Woven by Toyota, a software and mobility company spun out of the automaker, to apply data from Waymo's operations to improve road safety for ordinary vehicles and traffic infrastructure.

Why it matters

The Verge frames the partnership as a pairing of the world's largest automaker with the world's leading autonomous driving company, which alone makes it consequential. But the manufacturing detail is arguably the more important part. Retrofitting off-the-shelf cars is slow and costly; installing autonomy hardware as vehicles are assembled points toward a production model that can scale.

The bZ4X also strengthens Waymo's argument that its value lies in the driver rather than the car. If the same system runs on vehicles from Jaguar, Zeekr, Hyundai and now Toyota, Waymo becomes less dependent on any single supplier and more credible as a technology layer that other manufacturers can adopt.

Tokyo is also a demanding test of portability, with different roads, rules and driving conventions. A successful launch there, followed by the United Kingdom, would show that Waymo's approach can travel beyond the United States, and the stated interest in personally owned autonomous Toyota vehicles hints at ambitions well beyond ride-hailing.