Lucid Group Inc. (NASDAQ: LCID) completed a $300 million investment from Uber Technologies Inc. (NYSE: UBER), the electric vehicle manufacturer announced September 4.

The investment supports a robotaxi partnership between the companies first announced in July. The autonomous vehicles will use Lucid's electric vehicle technology platform and be manufactured at Lucid's Arizona facility for exclusive operation on Uber's ride-hailing platform.

The robotaxi service is expected to launch in a major U.S. city later in 2026. The vehicles will be based on the Lucid Gravity platform and incorporate Nuro Driver Level 4 autonomy technology.

Uber plans to deploy 20,000 or more Lucid vehicles through the program over six years, according to the press release.

"Lucid's innovations and technologies are second to none, and Uber's investment is just the latest example of a third-party validating our highly advanced technical platform," said Marc Winterhoff, interim CEO at Lucid.

The funding contributes to development costs for the autonomous robotaxi initiative and supports the ongoing partnership between the two companies.

Lucid manufactures the Lucid Air sedan and Lucid Gravity SUV at its Arizona facility. The company focuses on electric vehicle technology development from its Silicon Valley headquarters.