 Complete the following phrase:  1990 was the 500th World Championship Grand Prix ever held; and it came after yet more controversial events at Suzuka. Senna had crashed into Prost at the very first corner on the first lap of the race; and he won the Drivers Championship for the second time. The Australian Grand Prix that year was an incredibly exciting race: Senna led for 61 laps, but crashed near the entrance to the permanent race course because of gearbox problems. The race then turned into a dead-heat sprint between Nelson Piquet in his Benetton-Ford and Nigel Mansell in his Ferrari. Mansell charged through the field and repeatedly broke the lap record in pursuit of his former Williams teammate. This almost ended in disaster when the Ferrari almost hit the Benetton at the end of the Brabham Straight in a last-ditch overtaking move on the last lap. Piquet won from the Ferraris of Mansell and Prost. There was pre-race controversy when Prost refused to take part in both the annual end of season drivers photo and the special photo shoot with the World Champions in attendance including legendary five-time champion Juan Manuel Fangio, three-time champions Sir Jack Brabham, Jackie Stewart, Niki Lauda, and Nelson Piquet; and other world champions James Hunt, Alan Jones, Denny Hulme and Senna, as Prost was still disgusted and angry did not wish to appear in the photos with Senna following their controversial first corner crash in the previous race in 