Bubstr,
I believe you are incorrect but will not argue. I will try to explain my point and theory about this though. If I am wrong, then I am wrong.
I do believe it is possible to transfer more weight than you actually have by the force caused by the increased acceleration.
If the car was motionless and not moving forward at a rapid rate of acceleration, I would be 100% in agreement with you. It isn't. The mass is rapidly accelerating in a vector that is moving in a forward and upward direction when it would prefer to remain where it is and motionless. As the mass gets higher it becomes heavier to a point and is trying harder to go back to where it began moving, which means the mass of weight is transfering backward at the weight of the entire car but also add the rate of the weight mass at an increasingly higher center of gravity accelerating.
Maybe Mr. Billy can calculate an example of this. I can't I am a dummer.
Ed