We owned our 626 for three years and are so glad we got rid of it. The automatic transmission has been a nightmare and the car was in and out of the shop constantly. It could not even be fixed. In addition the driver seat folds back completely when pressure is applied at a certain point (e.g. picking up a toy from the back floor). Imagine this happening during an accident! Mazda was not helpful with any of the problems. Before you buy this car, search the web with keywords like "1996 Mazda 626 Transmission 0/D Light" etc. You'll find hundreds of people with a bad experience with this car. (Automatic transmission only; manual seems to be fine).
Transmission cooler and sensors that work (and last).