For the first lap of the 1999 British Grand Prix, nothing suggested anything unusual was about to happen. Michael Schumacher, the reigning championship favourite in a strong Ferrari, was running comfortably as the field funnelled into Stowe corner, one of Silverstone's fastest bends, taken at well over 150mph.
His rear brakes failed without warning. The Ferrari continued in a straight line at full speed while Schumacher fought uselessly for retardation that was not coming, and struck the tyre barrier almost head-on. The impact was severe enough to fracture both his tibia and fibula in his right leg. He was extricated from the car in visible pain and taken to hospital, where scans confirmed the double fracture. His season, for all practical championship purposes, was over — he would miss six races before returning near the very end of the year, by which point the title fight had moved on without him.
What happened next mattered as much for the rest of the season as the crash itself. Ferrari's other driver, Eddie Irvine, had spent three and a half seasons as Schumacher's clearly designated number two — a role he had accepted without much public complaint, understanding that his job was to support Schumacher's title bids rather than pursue his own. With Schumacher suddenly and unexpectedly out of the championship picture, Ferrari had little choice but to convert its entire campaign around Irvine instead, elevating a driver who had never seriously been considered a title contender into the team's lead challenger for the remainder of the year.
The race itself, run on after the red flag prompted by Schumacher's accident, was won by David Coulthard for McLaren — a result that, like so much else that afternoon, was almost entirely overshadowed by the images of Schumacher's stricken car and the uncertainty about the extent of his injuries.