The Renault RE50 was the Formula One car with which the factory Renault team competed in the 1984 Formula One World Championship. The car was driven by Frenchman Patrick Tambay and Englishman Derek Warwick, who joined the team from Ferrari and Toleman respectively; a third car was entered at the final race of the year in Portugal for test driver Philippe Streiff. The car's best results were three second-place and two third-place finishes, making it the first factory Renault not to win a Grand Prix in a season since the RS01 in .