Complete the following sentence: Ecurie Francorchamps raced in sports car racing from the 1950s until the 1970s. ️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️ 1954<unk>they finished fourth with Laurent and team owner Jacques Swaters as the drivers. <unk>1954<unk>they finished fourth with Laurent and team owner Jacques Swaters as the drivers. Ecurie Francorchamps<unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> ️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️ 1957<unk>they returned at Le Mans with Lucien Bianchi and Georges Harris finishing seventh in a Ferrari 500 TRC and winning the S2000 class.<unk>1957<unk>they returned at Le Mans with Lucien Bianchi and Georges Harris finishing seventh in a Ferrari 500 TRC and winning the S2000 class. Ecurie Francorchamps<unk> kept returning in Ferraris every single time. Blaton and Alain de Changy finished sixth in 1958. 1960 Leon Dernier and Pierre Noblet finished sixth overall and third in their GT category. Lucien Bianchi and Georges Berger didn't finish in 1961. Pierre Dumay and Leon Dernier finished in a fine fourth place in 1963 also finishing second in their class.<unk> Pierre Dumay and Leon Dernier finished in a fine fourth place in 1963 also finishing second in their class. ️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️ Pierre Noblet and Claude Dubois finished tenth in
1966. <unk> <unk> Ecurie Francorchamps would not return to Le Mans until 1970 where Hughes de Fierlandt and Alistair Walker finished in fifth place in a Ferrari 512S. Hughes de Fierlandt and Alain de Cadenet retired in 1971.