Regenerative braking is a huge factor when it comes down to hydroplaning. Hydroplaning and braking do not go well together. Generally in a normal gasoline vehicle, when in a hydroplaning situation where you feel the vehicle is beginning to slide, you would let go of the throttle (gas pedal), and correct the steering. Upon doing that, regenerative braking (which comes from letting go of the gas pedal), caused the vehicle to completely go sideways and no chance for me to correct the steering. This situation could have been avoided if the vehicle did not automatically brake on it's own when I let go of the throttle, in this situation.