In 1970, one year after the launch of the 1430, SEAT unveiled its Cinco Puertas estate version, as it had already done with the 124. The new model combined the practicality of the fifth door with the performance of the 1.438 cc engine it shared with the saloon. So it was a preview of the current SEAT Leon Sportstourer concept.

The 1430 was a unique SEAT model born in 1969, which could be considered the most complete Spanish saloon of the time. The 1430 could be easily distinguished from the SEAT 124 it was based on by its twin-headlights (the 124 always had a single headlight), a cosmetic feature that the estate version inherited. The car was powered by a 1.438 cc engine (hence its name), good for 70 HP, ten more than the 124. So the 1430 was a different, more luxurious and higher-performance car than the 124.

The 1430 estate version, officially called Cinco Puertas (5 doors), was unveiled in the summer of 1970. The first customer of this car was the Guardia Civil patrol police, which had already received five units of the 1430 estate in 1969 to be used on the first Spanish toll highways. Actually, the idea of this car came from that special car devised by SEAT to patrol the highways.

The dimensions of the 1430 estate were pretty much the same as the saloon version. It was 2 centimetres higher and 20 kilos heavier, and was fitted with a reinforced rear suspension. The fuel tank was also bigger, from 39 litres in the 1430 saloon to 47 in the estate, which made it even more apt to travel long distances. The 1430 estate had an extra cost of 6.500 pesetas compared with the saloon. It was a family car of great functionality, with performance on the higher-end of the domestic market. Its characteristics made it a much appreciated model as an ambulance, fire car or police car.

Undoubtedly, the most exclusive 1430 Cinco Puertas was the 1974 Especial 1600, powered by the 95 HP, 1.6-litre twin-cam engine of the 1430 FU saloon. As the 1430 estate was the forerunner of the Leon Sportstourer concept, the layout and performance of the 1430 Especial 1600 estate made it the grandfather of the CUPRA Leon Sportstourer. Actually, the 1430-1600 estate was ahead of its time and had little commercial success - only 852 examples were built. The 1430 estate was produced up to the end of 1975 and would be replaced by the 131 break.

The restoration of this turquoise blue 1430 Cinco Puertas was completed by the SEAT HISTÓRICOS team in early 2019. This model is one of the "improved" to 75 HP cars introduced in March 1973, at the same time as in the saloon, thanks to some work on the head cover and carburettor. On the outside, both the "improved" saloon and estate are distinguished from the standard 1430 by the six air intakes under the grill.