What would be involved in retrofitting this pack into ann existing hybrid? Seems like this pack could really transform a prius.

Searched and couldn't find any projects maintaining the hybrid drivetrains. My ls600 is a beautiful vehicle with an amazing v8. can any one point me in the direction of swapping the aging nimh for a lighter more powerful (maybe a 330e)lion pack? There are nexcell li-on packs in development and I've ...