Maybe I'm weird, but I believe that if you have to ask the car salesperson anything about the car you're test-driving, you haven't done enough research. I don't trust salespeople, clerks, etc., to know anything about what they're selling. I've been burned a few times by salespeople. Sometimes I even ask leading questions to get them to say what I already know.

If I'm taking a test-drive, it's because I want to know how the car feels and handles for me, and the salesperson might as well stay in the showroom.