Is the rant about grammar or the idea of being "upside down" ? I think it's about your car's value worth less than what you owe on it. It's pretty low for a car dealer to seek out those weak customers who want a new car, regardless of the financing deal to which they agree. If someone owes more for a car than what it's worth, the smart thing to do is just pay it off by sticking to the original loan agreement, and NOT, roll their existing loan into a new car loan. Or heaven forbid, roll their car payment over into their house payment.
I'd say it's a pretty good rant....to be upset at the car dealer for trying to put people into financial ruin.