Re: Please explain this English passage for me.?
To make it easier, let's say that usually 2000 trucks (units) are sold in any day. That means that a two-month supply of trucks would be 60 days x 2000 days = 120,000. If they had 120,000 in stock, they would have had about the right number. But they have more than twice the amount they should have.
The part of your response that makes me say "sort of" instead of "yes" is because you said "the amount of time GM had to keep their vehicles in stock..."
They didn't have to keep them in stock for that long. They have just made too many, so they are staying in stock longer than they should. If they had cut production, they would have less money tied up in inventory.
EDIT: Oops. I missed the second page. Sorry.
I'm not a teacher, but I write for a living. Please don't ask me about 2nd conditionals, but I'm a safe bet for what reads well in (American) English.