The California-based eVTOL startup is moving forward with manufacturing plans to produce electric air taxis, with help from Toyota, Uber and Delta Airlines.

Joby Aviation raised $500 million from Toyota, the largest single round of funding for a flying taxi startup in years.

The investment strengthens a years-long relationship between the two manufacturers as Joby continues working towards type-certification of its eVTOL aircraft.

Toyota is doubling down on Joby Aviation with a $500 million investment into the California-based company that's developing electric air taxis. Toyota's

Toyota is investing another $500 million in Joby Aviation as part of a partnership aimed at helping get the American air taxi company’s commercial business off the ground.

The investment comes at a time when Joby is ramping up production for its five-seat electric air taxis. Toyota is now Joby's lead investor.

Toyota Motor Corp. is investing an additional $500 million to support the certification and commercial production of Joby Aviation Inc.’s electric air taxi.

Auto giant Toyota is investing another $500 million into Joby, which pioneered the first test flight of an air taxi over the skies of New York City.The Latest Tech News, Delivered to Your Inbox

While we’re still waiting for those flying cars, Toyota is betting high and hard on electric air taxis. The automaker just earmarked another $500 million for Joby Aviation, which increases Toyota’s total support (so far) to nearly 900 million dollars.

Robotaxis aren’t the only place where the basic concept of “pay someone with a vehicle to take me a short distance” is undergoing some high-tech permutations. There’s also the matter of air taxis: small vehicles that can take you somewhere local — and where,