New united motor manufacturing
You're referring to NUMMI (New United Motor Manufacturing, Inc.), a former American automaker that was a joint venture between General Motors (GM) and Toyota.
NUMMI was established in 1984 as a partnership between GM and Toyota to operate a manufacturing facility in Fremont, California. The company was created to produce vehicles for both GM and Toyota, with the goal of sharing knowledge, technology, and best practices between the two companies.
NUMMI produced a range of vehicles, including the Toyota Corolla, Toyota Tacoma, and General Motors' Pontiac Vibe. The company was known for its innovative manufacturing practices, including the use of lean manufacturing techniques and a focus on quality and efficiency.
In 2009, GM announced that it would be closing NUMMI due to financial difficulties. Toyota, however, decided to continue operating the facility and renamed it New United Motor Manufacturing, Inc. (NUMMI) in 2010. The company continued to produce vehicles for Toyota, including the Corolla and Tacoma, until it ceased operations in 2010.
NUMMI's legacy is still felt in the automotive industry today. The company's innovative manufacturing practices and focus on quality and efficiency have been adopted by many other manufacturers around the world. Additionally, the Fremont, California facility where NUMMI was located has been repurposed as a Tesla factory, where the company produces its Model 3 and other electric vehicles.