Vehicle Shudder problems of the 2007 Mazda CX9

I was driving home on a busy interstate when my car started shaking and losing power. They car lost all power and I couldn't turn the steering wheel to get out of the way of other drivers. I was almost hit more than once by other cars. After having the vehicle towed and a licensed mechanic look at it, I was told the water pump failed and leaked water and coolant into my engine which completely disabled my engine.