To this day, no-one knows for certain why Senna crashed. Many theories of varying credibility have been put forward. My personal view is Senna, desperate to break free from the car behind, carried a bit too much speed into Tamburello the car went slightly offline onto a part of the track known to be extremely bumpy. The ride height was still too low after the safety car so it 'bottomed out'. This also caused the peaky aerodynamics on the Williams to stall resulting in a catastrophic loss of grip made worse by tyres not up to working pressures or temperatures. This view is shared by Damon Hill who drove an identical car to Senna, and Michael Schumacher, who had the clearest view of what started the crash. In my humble opinion, they are the two best people to judge its cause.
Senna leading Schumacher moments before the crash







