Kammala jumla mai zuwa: Bayan gina motar GP ga Jean Behra, wanda aka sani da Behra-Porsche, Colotti ya gina motar Grand Prix mai suna Tec-Mec F415, bisa ga Maserati 250F a 1959, tare da Fritz d'Orey a matsayin direba wanda ya gama 10th a
1959 Gasar Faransa. A kusan lokaci guda, Alf Francis, Babban Injiniya a Rob Walker Racing, ya fara aiki tare da Colotti, yana canza sunan Tec-Mec zuwa Colotti-Francis.