听力原文：M: Hey, Carla, haven't seen you for a long time. Look, what's new? W: Well, I got a new car. M: Really? What happened to old Betsy? Sold it? W: (9) After 150,000 miles, she finally died. M: Oh, I'm sorry to hear that. W: Me, too. It had been my favorite once. M: So what kind of car did you get? W: A Toyota. In the beginning I wanted to buy an American car. But you know, recently the oil price has been going up continuously. So I decided to get an economical type. M: That's a good little car. Have you ever thought about how cars get their names? W: Huh-uh, not really. M: Well think about it. Toyota has a series of different names for its ears. They all start with a 'c' and sound Italian, but they don't mean anything. W: Just like lots of American cars are named after birds or fast animals, such as 'Blue Bird', 'Eagle'. M: Car companies must spend a lot of time and money coming up with these names. Speaking of which, what are you going to call your new car? W: I don't know yet. Do you have any ideas? In this conversation, what is Betsy?