Based on the 1100 model 1958 bodyshell, the Lusso was distinguished by elaborate exterior trim. At the front for the first time on a 1100 the Fiat badge was moved from the bonnet to the centre of the grille, featuring a new square mesh radiator. The body-side chrome spear split in two to encompass a contrasting colour band (matching the roof paint) extended from the front doors to the end of the rear quarter panels, where there was a brass-plated ornament. The fuel filler cap was hidden under a lockable flap. There were new hubcaps, and the bumpers carried tall rubber-edged overriders. New interior features were a padded vinyl shelf added below the dashboard, and wind deflectors fixed to the front side windows.