Every so often for some reason or another you have to move your car seat, an elderly relative in the back seat behind you maybe, or a quick nap in a lay-by. It is with reluctance we often do this, why? Because you know that no matter how much fiddling and messing about you do you won’t get that seat back in the same place, it won’t feel right for a long time and you’re in for a few weeks or driving whilst wiggling your bum about and messing with the adjustable lumbar supports or shifting your seat back and forwards at every traffic light stop.