The prices at the world's largest used car auction have been better than usual lately, especially since President Donald Trump started pushing for new tariffs on imported vehicles, parts as well as the steel and aluminium used to make cars.
The agency is pressing Tesla's board for details on how much Musk had shared with them prior to announcing his plans on Twitter.
Tesla Model 3 came out slightly ahead of the BMW i3 and Chevy Bolt in estimated production costs, and engineers praised the firm's simple powertrain design.
The SEC has reportedly sent subpoenas to the electric car maker over CEO Elon Musk's comments about taking Tesla private.
Whether it was an impulse tweet or not, it's likely the SEC has already opened an investigation into Tesla CEO Elon Musk's tweets Tuesday and is looking for documentation to back up his comments about securing funding, former SEC lawyers say.
The agency asked if the statements Elon Musk made on Twitter are true and asked why he disclosed them on Twitter, reported Dow Jones, citing sources.
The Ford Mustang is the best-selling two-door sports car in the world and can make the rare claim of being in production since the 1960s.
Tesla shares were halted for news after CEO Elon Musk issued a series of tweets Tuesday afternoon.
Musk's Twitter account said funding is secured to take Tesla private at $420 a share.
Prakash Patel is the second Ford employee to leave in a year under a haze of accusations.