 Complete the following phrase:  In 1961, Scuderia Serenissima entered the Formula One World Championship. They first entered a Cooper T51 for Maurice Trintigt at the 1961 Monaco Grand Prix, where he finished seventh. In Belgium, Trintigt retired on lap 23 with a broken gearbox after having qualified his car in 19th place. At the 1961 French Grand Prix, Scuderia Serenissima entered two cars. Again the Cooper for Trintigt and a De Tomaso for Giorgio Scarlatti. Trintigt finished in 13th place while Scarlatti retired on lap 15 when his engine broke down. At the German Grand Prix Trintigt retired on lap 12 when his engine broke down. In the 