I have not read there in a while either, but if I remember correctly it started in this-
Changing an induction motor voltage - The Australian Electric Vehicle Asn - Page 1
and lead to others. Basically take a ~14HP three phase induction motor and a VFD rated more than double that. Lie to the VFD and it was able to (again if I remember correctly) to boost to hundreds of HP and lots of torque. At least for enough time to accelerate a car well.