OK, no need to belittle me. I am not an idiot. The reason i said that was because my mums car broke down on the motorway, and everything shut-off, and my dad managed to steer it off onto the hard shoulder and just managed to stop before a bridge, the recovery man put the car in Reverse, With the engine OFF (becuase it would not start) and reversed it down the hard shoulder to get the car onto the truck. Now unles my mums car has miraculously become the first car in the world to be driven with the engine off.......OR, reverse is controlled by an electric motor..... By judging the way in which you replied, you know that the C4 is different It would have been much easier to come back with knowledge which would stop me making the same mistake again, like the other people who have posted.