The striking drivers were eventually fined $5,000 each and given a one race ban, suspended for six months, but the process of reaching this compromise position took several weeks and contributed to the cancellation of that year's Argentine Grand Prix, due to be the second race of the year. The Brazilian and United States West Grands Prix were both won by DFV-powered cars, and both results were protested by the Ferrari and Renault teams, on the grounds that the leading DFV teams were competing with underweight cars thanks to their water-cooled brakes. The stewards in Brazil ruled that the Piquet's winning Brabham and Rosberg's second-placed Williams were illegal, but their counterparts in the US rejected the same claim against Niki Lauda's McLaren and Rosberg's Williams, although they did uphold the Tyrrell team's protest against Ferrari's use of two rear wings and disqualified Villeneuve. The appeal process meant that the result of the protest would not be known for another month.