The motor should make 400 lb/ft of torque with 2000 amps.
The supercaps can generate about 4000 amps for a few seconds,
How much can the single transaxle handle?
The motor weighs about 120 lbs. The caps and a 2 minute battery are about 200lbs.
I have a smaller 8in motor and lightweight transaxle thinking of putting it in the front mostly because I have it and its just been collecting dust. The motor is not an A/C motor so no regen/braking, which is kinda the point of the awd, but I have it and its pretty light.
Pic of it, the bottom right is the main A/C drive motor out of a Prius for size comparison.