Williams Racing is run by team owner and founder Sir Frank Williams and his daughter Claire Williams. The team was formed in 1977 after Frank Williams' two earlier unsuccessful F1 operations: Frank Williams Racing Cars (1969 to 1975) and Walter Wolf Racing (1976). Several Formula One icons like Damon Hill, Nigel Mansell, Keke Rosberg, Nelson Piquet,have been part of the Williams team. Among them is a man largely considered the greatest F1 driver of all time Ayrton Senna and his archrival Alain Prost was also part of the team. More recently, McLaren driver and 2011 World Champion Jenson Button was also with Williams in 2000. Currently racing for Williams are the Canadian driver Lance Stroll and the Russian driver Sergey Sirotkin who recently joined the team for 2018.