In the fourth quarter 1964 In the year, the production of a new body with a different silhouette was launched. The curved front and rear windows have significantly improved the visibility from the driver's seat. The rear part of the body contained a spacious trunk with a total capacity 450 dm8. For the first time in a domestic vehicle, a soft carpet for the instrument panel and a reversing light were used. Since then, the FSO gates started to leave Warsaw cars 203 (Lynx. 5) with the S-21 engine and Warsaw 204 with the M-20 engine (later the markings were changed to 223 i 224).
The estate version was put into production the following year * marked with the symbol 203 K (Lynx. 5). In this car, the aesthetically designed rear part of the body and a fixed roof rack attracted attention. The body of the station wagon was also used for the production of a single-bucket ambulance, designated as 203 A.
Thinking about the future, FSO designers developed a completely new medium-range car, which was named Warsaw 210. Work on this vehicle started in 1961 year. The leading constructor was Eng. A. Mountain. The engine was developed by Eng. WITH. Glinka, chassis - Eng. J. Roman, and the body - Eng. S. Łukaszewicz. Building a prototype 210 (Lynx. 6) completed in 1964 year. It was a very modern car in those years. It was envisaged to use two different engines: six-cylinder for the base model and four-cylinder for the economy version. Larger engine with a displacement of approx. 2,5 dm3 reached the power 62 kW (85 KM) at 4200 rpm, smaller with a displacement volume of approx. 1,7 dm3 - 42 kW (57 KM) at 4200 rpm. The single-disc friction clutch was controlled hydraulically, a four-speed gearbox fully synchronized. The rear drive axle had a non-split sheath. The front wheels are independently suspended on McPherson struts cooperating with a transverse wishbone and a coil spring. The rear suspension uses two longitudinal springs with three leaves. Road wheels with a diameter of 14 were used″. The hydraulic service brake had two independent circuits. A self-supporting body with a modern silhouette was distinguished by a large glass surface and direction indicators originally placed in the corners of the front and rear fenders. The wheelbase was 2470 mm. With a curb weight of approx 1200 kg the vehicle was reaching speed 150 km/h (135 km / h in the economy version). Further development of this interesting design has been put on hold due to the purchase of Fiat's 125p license. W 1967 year, a prototype of Warsaw was made 223 with revised front body moldings (Lynx. 7), however, the production of this model was not undertaken.
Cars Warsaw 223/224 were produced until 28 February 1973 r. By 22 total years of production performed 254 thousand. pieces of Warsaw cars in various models and versions, what have been exported 145 thousand. vehicles.