There were two main versions, differing in the engine employed: 1300 (1295 cc, ) or 1500 (1481 cc, ). The 1300 model entered production in 1968 and the 1500 in 1969. The 1300 ceased production in the late 1980s. Polish cars differed in detail from Italian ones: most visibly there were four round headlights instead of four square ones, simpler bumpers and front grill, orange color front turn signal lenses, simpler body sheet metal stampings, and the old Fiat 1300/1500 chassis and interior. A less visible but significant change in the Polski Fiat was a safer flat fuel tank above the rear axle, instead of Fiat's vertical tank on the rear right-hand side. It also had more durable all-around disc brakes.