Following its introduction in 1965, the 250 engine would be the cornerstone of the company's future success. Mounted on the new 250 Scorpion scrambler, Pi won the Spanish championship again in 1966 and the similarly engined Sport roadster won the Barcelona 24-hour endurance road race. In 1967 the first Montesa trials models appeared and in 1968, the motorcycle now retitled the Cota, Pi won the Spanish Trials Championship. After adding this title to go along with the road race and six motocross titles, he retired from competition to devote his full energy to bike development.