It is difficult to tell whether autoboxes are in good condition at first glance. Have a check of the gearbox fluid. Normally this should be a red/pink colour if the car has has it's fluid changed at regular intervals. If the fluid in the box is dirty then there is a good chance that the car has not been serviced regularly. When you test drive the car you want to check that the car changes gear smoothly and there isn't hesitation or indecision at the point where the car ought to be looking for another gear. Check the kickdown by driving at about 30mph and then suddenly pushing the accelerator down to the floor as if to accelerate away fast - the car should quickly drop down the gears.
Matt Phelps, October 2003