the World Championship the year before, finished first in a Brabham BT49-Ford, with Finland's Keke Rosberg second in a Williams FW07C-Ford. However, both drivers were disqualified for being underweight, having raced with "water-cooled brakes". This promoted Alain Prost, third in the turbocharged Renault RE30, to the win, the first of an eventual five for the Frenchman at the circuit and start a streak of 7 straight wins for turbo powered cars at the circuit until the original turbo era ended following the season. The disqualifications, however, prompted most FOCA-aligned teams – including Brabham and Williams – to boycott the San Marino Grand Prix two races later. However, unlike the 1980 Spanish Grand Prix where the factory teams of Ferrari, Renault and Alfa Romeo (all who were on the FISA side of the war) boycotted the race and the results were eventually voided, the 1982 San Marino Grand Prix results without the FOCA teams were counted. Piquet and Rosberg again crossed the line first and second in the 1983 race, although this time only Rosberg was disqualified, having had a push start in the pits after his Williams FW08-Ford caught fire. Unusually, the drivers below Rosberg were not promoted accordingly. The win was the first of two wins at the circuit for Piquet, who would go on to win his second World Championship that year. Piquet won the race in his Brabham-BMW turbo and went on to be the first ever F1 World Champion to be powered by a turbocharged engine. From 1983 until 1989, the Brazilian Grand Prix was the opening race of the season. Both the 1984 and 1985 races were won by Prost, now racing a McLaren-TAG. The 1984 race also saw the debut of Ayrton Senna, driving a Toleman TG183-Hart where he had the unfortunate 'honour' of being the first retirement of the season. Piquet won the 1986 race in a Williams FW11-Honda, with Senna making it a Brazilian 1–2 in a Lotus 98T-Renault, before Prost beat Piquet to win the 1987 race in a McLaren MP4/3-TAG. After Piquet won his third (and final) World Championship in , the circuit was named after him in 1988. However, he had to settle for third in a Lotus 100T-Honda in that year's race, as Prost once again won in a McLaren MP4/4-Honda. 1988 was the last year of the original turbo era in Formula One. For Prost it was