Total US Sales
2007........16,154,064
2008........13,245,718
2009.........10,431,510
Total US sales fall of 19% were part of the cause of GM and Chrysler bankruptcy.
Total sales fall of 36% in 2009 from 2007 was in large part caused by the turmoil of GM,Chrysler, and supplier bankruptcies.
GM and Chrysler didn't declare bankruptcy until June 1, 2009 because the Bush administration wanted to punt the ball to the next administration. By June 2008 it was clear Detroit needed a bailout but the Bush administration only gave stop gap temporary relief. That GM and Chrysler had disproportionate sales losses is because they had crappy cars. This is not analogous to Tesla in the near future if we enter a Great Recession.
Chrysler had very little sales in China. They went bankrupt in large part because they were perpetually near bankruptcy for decades.
GM went bankrupt because they did not have the foresight of Ford to either save or borrow a rainy day fund before the Great Recession.