Ayrton Senna and Alain Prost (now at Ferrari) collide at Suzuka for the second year running, handing the Brazilian the title • Alessandro Nannini's F1 career ends after he loses an arm in a helicopter crash • Martin Donnelly lucky to survive life-threatening practice crash at Jerez, though his F1 career is ended • Nigel Mansell announces his retirement from Formula 1 mid-season, only to eventually sign for Williams for 1991 • Two chicanes are put on the Mulsanne straight at Le Mans, as Jaguar takes its last overall victory • The Birmingham Superprix takes place for the last time and is won by Eric van der Poele • Michael Schumacher wins the Formula 3 Macau Grand Prix after a collision with British F3 champion Mika Hakkinen • Carlos Sainz wins the World Rally Championship for the first time • Arie Luyendyk wins Indianapolis 500 as Al Unser Jr takes Indycar title
1990
Ayrton Senna and Alain Prost clash at Suzuka again, this time with Senna taking the championship
Michael Schumacher (#3) wins the Macau Grand Prix after colliding with Mika Hakkinen (#2)
Carlos Sainz wins the World Rally Championship for the first time
Martin Donnelly survives a massive accident in practice at Jerez
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