Did some nosing around to satisfy curiosity, and here's what I found:
With the "hump" cover removed.
Here's the back of the Charger. You can see the water cooling lines entering from the bottom and the cooling channels in the aluminum casting.
Here you can see they added in an EMI filter. This is not shown in the service manual. The wiring from the front of the car appears to be about 12awg. The 2 small black wires are the pilot signal from the EVSE and the handle interlock.
The Charger is made by Nichicon.
This is the other major thing in the "Hump". It's the Panasonic brake backup supercapacitor assembly. Very similar to what's in the Prius, only larger.