I have a 5th generation 4-wheel steering Celica with an autobox. I know what the over drive button do and you can notice something happening when you press it, but there are another 2 buttons next to the lever, printed on the one is "MANU" and the other one has "POWER" on it, I have played with them and don't feel or notice anything when pressed. What are they supposed to do? Another question, probably related to the suspension, there is a button that says "SPORT", also don't notice anything when pressed, what does it do?
