I found the specs for it too. 4731lbs!
The Motor shows up everywhere, they sell for <$2000.
Mavin sells them in bulk but you can get just one or two for $2000 a piece. It's called a Siemens/Ballard AC motor, it's rated for 33kw continous is watercooled, weighs 150lbs or so and a inverter/controller is hard to find for it.
But someone homebuilt one so it's possible he might start selling them.
Tischer is the guy.
His project is posted on Ev Album
here>