While driving, the transmission feels like it goes into neutral. Then when I pull over and shut the vehicle off for a couple of minutes and restart it I can drive 20 to 30 feet then it feels like it goes into neutral again. I repeated this 3 or 4 times and finally had it towed to a friends house where it is sitting now. Any help would be appreciated as this is my wifes car and we are playing musical cars with my sons and my car.