Actually, we discussed this in another thread around here somewhere.. but in Sport mode, the CT is capable of 650V, regardless of throttle position. In any other mode, full-throttle will provide 650V. Anything less than full throttle is limited to 500V. That's the same for the Prius.. 500V normal, 650V full throttle.At full throttle, the CT puts out 650V of power until the gas engine kicks in. The Prius only puts out 500.