My current thoughts are that our chat is a reasonable place to point people who have a legitimate interest in feedback but aren't asking an answerable question as yet. Case in point:
There are certainly people on our SE who have strong opinions about the vehicles in question. However, the OP doesn't really know what to ask or point out as distinguishing features between two vehicles.
It's possible that a significant number of "too localized" or "too general" questions could benefit from a timeout in the chat zone. If nothing else, I feel less like a jerk in closing the question.
Do you agree that pointing some users at the chat rather than slamming the door is a better move?