What Brazilian racing driver died in an accident during the 48th season of FIA Formula One motor racing?
Ayrton Senna
Title: 1994 FIA Formula One World Championship
Passage: The 1994 FIA Formula One World Championship was the 48th season of FIA Formula One motor racing.  It featured the 1994 FIA Formula One World Championship which commenced on 27 March 1994, and ended on 13 November after sixteen races.  The season is remembered as one of the most tragic and controversial seasons in the sport's history.  1994 was one of the closest championships in history as Michael Schumacher won the Drivers' title by a single point from Damon Hill after the two controversially collided at the final round in Adelaide.  Schumacher had built up a huge championship lead, winning six of the first seven races, before two disqualifications and a race ban allowed Hill to close the gap.  British constructor Williams-Renault won the Constructors' Championship.  However, the 1994 season will also be remembered for the deaths of three-time World Champion Ayrton Senna and Austrian rookie Roland Ratzenberger at the San Marino Grand Prix.  Forty-six drivers competed in the 1994 World Championship, including fourteen who made their F1 debut and numerous pay drivers. Mercedes-Benz also returned to the sport for the first time since 1955 as an engine supplier to Swiss team, Sauber.  The season also saw the first win for Ferrari since 1990 – whilst McLaren failed to win a single race following the departure of Senna, before embarking on a long-term partnership with Mercedes.
Title: Ayrton Senna
Passage: Ayrton Senna da Silva (] ; 21 March 1960 – 1 May 1994) was a Brazilian racing driver who won three Formula One world championships for McLaren in 1988, 1990 and 1991, and is widely regarded as one of the greatest Formula One drivers of all time.  He died in an accident while leading the 1994 San Marino Grand Prix for Williams.
Title: 2012 FIA Formula One World Championship
Passage: The 2012 FIA Formula One World Championship was the 66th season of FIA Formula One motor racing.  It featured the 2012 FIA Formula One World Championship, a motor racing series for Formula One cars, recognised by the Fédération Internationale de l'Automobile (FIA) — the governing body of motorsport — as the highest class of competition for open-wheel racing cars.  The championship was contested over twenty rounds, which started in Australia on 18 March and ended in Brazil on 25 November.  The 2012 season saw the return of the United States Grand Prix, which was held at the Circuit of the Americas, a purpose-built circuit in Austin, Texas.  After being cancelled in 2011 due to civil protests, the Bahrain Grand Prix also returned to the calendar.
1994 FIA Formula One World Championship Ayrton Senna