I have just read about 53+1 the other day (can't rembember where, tough) 53+1 is specialized on slalom courses and can navigate them faster than a human driver. The car first runs the course very slowly scanning it, then it has to pause for half an hour when a special software optimizes steering, braking and acceleration points and afterwards it goes around the course faster than a real driver could. The system is NOT flexible, for example when a human suddenly is on the track on the fast lap it will blissfully ignore the humans existance and accelerate right through the human and create quite a mess. The usage seems to be exactly repeatable driving for car or tyre development. Froh