In August 1990, the Proton Saga Megavalve was introduced in Malaysia with a far more strong twelve-valve engine, and the exterior layout was altered somewhat with a new grille, trim and rims combined with the inclusion of rear seat belts and a 3rd brake mild as standard. Proton gave that as one explanation https://saga-aeroback20751.theisblog.com/34195992/getting-my-saga-aeroback-to-work