According to this article from Edmunds.com, the eighth step to test drive a used car is to keep it reasonable.

Buy here pay here may be the answer for you if you have no credit or bad credit.  Ask about 90 days same as cash.  Come see us at 3300 Taylor Boulevard for a test drive today or call us at 502-368-4999

  1. 8. Keep it reasonable.

    The vast majority of testing done by automakers and their suppliers is performed in a manner that does not violate traffic rules. For the most part, drive as you normally would, just pay a lot more attention to what the car's doing. If you're buying a sports car, ask the owner/salesman if you can take it around a couple of freeway ramps at a bit more aggressive pace.