Hi mate: i had a Starlet Ep91 Auto before, but get bored with that. Anyway, here is the infos! For the button PWR: it is means when you press the button down, then you can REV up to the Maxium in RPM when you put your foot down, it would be around 7500 in my previous experience. For the button MANU or MANL (Cant remember what?): It is mean when you press the button down, then you can change the gear by yourself included the sport button, it is means: 1 = gear 1, 2 = gear 2, D = gear 3, D with sports button off = gear 4 Hope this can help!