The phrase "Test Drive Before You Buy" refers to sexual chemistry. It's no secret that sex is one of the most important components of any committed relationship. According to couples, sex is a way to connect on a deeper level. When two people are passionate about each other and vibe well, it's just a matter of time before they lay down with each other. Why wouldn't sex come next? The chemistry is there, so it's only natural. There's a lot I look for in a car: Reliability, low mileage and good fuel economy. The older the car, the more mileage it has which makes it susceptible to frequent maintenance and other car issues. With a new car, it's fresh on the lot. It's waiting for the RIGHT owner to purchase the vehicle. There's nothing like that fresh, new car smell. You're the one who gets to break it in, and put YOUR special touch on that vehicle.
You can't put your own touch on a car if someone else already had it. With the "test drive before you buy" theory, some people want to test sexual chemistry before they agree to a committed relationship. To each their own, but that couldn't be me. I see sex as something very special, an act to be shared with the woman I cherish. If I'm vibing with a woman, we're already compatible, and sex would be a bonus. See, I think on a deeper level than most people. I don't have to "test drive" a woman for sexual chemistry, because I'm not thirsty like most people. Keep it real, you want a reason to get her/him between the sheets. The problem with test driving before you buy is that everyone before you has "test drove" before they bought, and all that mileage equals wear & tear.
When I think of a (wo)man who wants to "test drive before (s)he buys", I think of someone who is content with sloppy seconds, thirds, etc. The more mileage on a vehicle, the greater probability that the car won't last as long because although you may treat the person well, who's to say the previous person did? You don't know. Besides, what makes one think (s)he hasn't test drove other (wo)men?