I'd assume they would think:
"That guy has an expensive car. Therefore, he has a craptastic amount of car payments to cover the cost for a car. Therefore, he must not be very responsible with his money. Therefore, I'm going to have to bail him out financially later in life or my credit score will be pummeled. Hey, look, a guy with a sensible car. I'm going to start up a conversation with him. I see a guy who paid off his college loans and will not default on a mortgage payment if we ever get married and buy a house once we start a family. I find that sexy."