When was the Tesla Model 3 unit one million sold?

Context: The Tesla Model 3 became the world's all-time best-selling electric car in early 2020, and in June 2021 became the first electric car to pass 1 million global sales. Together with other emerging automotive technologies such as autonomous driving, connected vehicles and shared mobility, electric cars form a future mobility vision called Autonomous, Connected, Electric and Shared Mobility.

Answer: June 2021