Here is a cut away of an excellent motor and gearbox combo from Honda.
The image was grabbed from a weekly EV video from Robert Llewellyn called 'Fully Charged' on youtube.
Copyright Malcolm Faed. Images and text may only be copied with the permission of the author. This blog includes personal things of interest including electric vehicle conversion. I have documented the conversion of a petrol (gas) powered vehicle to Electric. http://www.austinev.org/evalbum/1149. The blog now documents the conversion of a BMW E30 to electric.