Fiat 1300 and 1500

The Seat 1500 was a car unrelated to the Fiat 1500. 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 94 bhp (70 kW). Moreover, there was a 1500 TS Coupé version with a unique body designed by Giovanni Michelotti. Both the saloon and the coupé were also manufactured by Fiat's German subsidiary, Neckar Automobil AG, formerly known as NSU-Fiat, located in Heilbronn (unlike regular Fiat 1300/1500).[8][9][10]

Zastava 1300 in Croatia

Zastava 1300 Luxe in Kragujevac, Serbia

The Yugoslavian automaker Zastava, which was extensively cooperating with Fiat, also assembled the 1300 and 1500, branding them as Zastava 1300 and Zastava 1500, respectively. Zastava went on to produce the 1300 by itself when Fiat in 1967 stopped production. During the seventies better equipment was added and models named DeLuxe and 1300E. The production finished in December 1979. 201,160 copies were made since 1961. The car was nicknamed Tristać (trista means 300 in Serbian language.). The saloon model in the Zastava's version is the same as in the Fiat's version, but the estate model is different. This model is used as the foundation of the Fiat 1300/1500's successor, Fiat 124.

With all-around disc brakes, rear-wheel drive, up to 72 horsepower (the engine could propel the car to a top speed of 155 km/h), the elegant Tristać was Yugoslavia's favorite upmarket car. The Zastava 1300 was also assembled by Leonidas Lara (C.C.A.) in Bogotá, Colombia.[11] Assembly of Zastavas in Colombia began as early as 1969.[12]

Argentinian-made Fiat 1500

For South American market Fiat Concord in Buenos Aires from 1963 produced a 1500 version. This was available as "Berlina", "Familiar," and in a pick-up version with three seats in the front row named "Multicarga". A total of 123,059 examples were produced. A Vignale-bodied coupé version, very rare in Europe, was more common in Argentina where 5,228 units were built between 1966 and 1970.[13] These four-seater coupés differed in minor ways from the Vignale coupés built in Italy and provided the basis for the 1969 1600 Sport, a fastback coupé that eventually developed into the Argentina-only 125 Sport. These later versions no longer required Fiat Concord to pay (steep) royalties to Vignale.[13] The 1600 received an enlarged version of the 1500s engine, displacing 1625 cc.

Although considered a variant of Fiat 125, the Polski Fiat 125p was actually a combination of bodywork of Fiat 125 and engines and mechanicals of Fiat 1300/1500.