 It was instead, as the Italian Fiat 1500 L, an underengined version of the Fiat 1800/2100.It was built in Barcelona, where 183,652 were produced between 1963 and 1975.Siata, the Italian tuning accessories and special vehicles manufacturer, devised a model called TS or 1500 TS that differed from the regular Fiat saloon in styling details, including two-tone paint, but mainly in the fact that the engine was tuned to deliver as much as .