Thus the system goes onto extension, which means there is a large and widening gap between the road surface and the body of the vehicle, and that steering will be practically non existent, as the car careers downhill. The front suspension will lock at full extension while momentum from the rear suspension, gas assisted and under stress, pushes the car upward, as the speeding and by then out of control vehicle, loses contact with the road. The car then crashes back down onto the roadway, and is then shot upward into the roof of the tunnel with the momentum of the vehicle, as the now recharged suspension firstly absorbs the full weight of the vehicle, then launches it skyward. The drivers judgment was clouded by alcohol, and it was bad driving that caused the vehicle to crash.. no murder. Who says the cameras in the tunnel were switched off, or that the police radios were immobilized, police testimony is notoriously fickle, and someone with an axe to grind, trying to build a case, need only solicit testimony from the Gendarmerie that the radios were down. Maybe it is the norm in Paris at that time of the night, that police communications are difficult, and that traffic cameras are mostly unserviceable. So both those random assertions are beat together, and pretty soon you have a story where you can cast slander and innuendo willy nilly, to the four winds with absolutely no physical evidence to back it up. However here like minded people have used the opportunity to slander, with total impunity, the Queen of England and her son Prince Charles, estranged husband of the deceased Princess Diana, in a matter so sensitive to their sensibilities as her tragic death in an automobile accident. Forensic evidence is used to determine the cause of traffic accidents in most cases. French accident inspectors gave professional opinions at proceedings in France, which influenced the French Coroner’s decision that no warrants be issued regarding this death. The latest slander doing the rounds is that MI6 somehow persuaded an Al Fayed employee to get full of likker, then drive like a lunatic, until he crashed into a reinforced concrete pillar in a freeway underpass in a plot to kill a VIP guest of the boss's son.. Gimme a break!