In 1980, the Italian Grand Prix moved from the high-speed Monza circuit to Imola. This was because of a bad crash in 1978. The crash killed the popular Swedish driver Ronnie Peterson. The 1980 race was won by Nelson Piquet for Brabham-Ford. In 1981 the Italian Grand Prix returned to Monza, and Imola hosted the new San Marino Grand Prix, named after the nearby republic of San Marino.