5 speed auto?

i bought my zx2 a couple of months ago and don't have any knowledge of it's history. i thought the auto was supposed to be a 4 speed, but i think mine is a 5 speed. tell me if i am being stupid but here's what happens. i can definately feel 5 shifts, and when i push the gas to make the car downshift at higher speeds, it downshifts, then i can pull the car out of overdrive (with the gear selector) and it downshifts again. do they all do this or is mine different? is there a 5 speed auto that fits the 2.0 zetec motor?:screwy:

4 speed w/ overdrive.

4spd, if you leave it in OD....like you should or your killing your tranny....
you will only run on 4 gears.

shifting auto manualy = bye bye tranny....learnn to drive before you cost yourself 3k in auto work.

i know how to drive. i only pulled it out of overdrive a couple times to see what it did. if it is not in o/d it only uses 3 gears.