With the multitude of make, model and option choices available today, buying a car is enough to make your head spin. And that's before you've even waded through the wide array of financing arrangements. Obviously your emotions -- your feelings about driving and your preference for certain car makes or models -- will play a role in the decision process. But, the smartest place to start is by thinking about you and your needs. To be sure you make the smartest choices, you'll need to do some homework.