Coming home from work the sarv and my car just stopped as in i lost drivability yet the motor was still running. I pulled over and put the car into part and it made a wierd grinding sound, so i put it back into drive and the car would not go. I reved the car and the spedo would go up and down same with the tacho but no drive, put it into reverse and still nothing no drive. So i got a mate from work to come out with the car trailer and pick up the car....when we got home and took the car off the trailer i started it so it was easier to steer when backing it off, the car went into reverse and had drivability, putting in drive and the same thing the car was back to normal. First instinct was that the gearbox was &*%($% and then we thought the inhibitor switch but that couldnt be is since we could select a gear. Can someone answer my question in what the )%&*)(*$ happened.....