Princess Diana: Conspiracy theories endure

There is perhaps nothing more central to the conspiracy than the car that carried Diana, and which would eventually kill her. Conspiracy theorists claim that its route was blocked, that it was driving at an unusual speed, or that something had been tampered with in the car. Everything about the car appeared to be in order. People reported seeing different speeds – and the car was certainly driving fast that night – but there was nothing unusual about the way it was driving. But a large part of the confusion here appears to emerge from the fact that it is simply too difficult to estimate speed. Witnesses who reported different things probably weren’t wrong – but it’s very difficult to tell how fast something is going when you’re outside of it, especially if you don’t have anything to compare it to.