Not sure yet. I'm leaning towards a Yasa P400 as it would seem to be an ideal fit into the space where the gearbox is and its spec would work well with the drive train gearing, or a pair of Hyper-9s. Batteries, again not sure, The Yasa P400 is a 750v unit.I have plenty of room, almost the entire engine bay and the space where the fuel tank is. Tesla units looking favourite at the moment, but it'll be a couple of years before I need to make any decisions, by which time I'll understand it all better and there will be probably more motors and batteries coming on the market by then too!