Powertrain
Mechanically, the Panda borrowed heavily from the Fiat "parts bin", using engines and transmissions from the Fiat 127. The engine is an inline four-cylinder with 40 PS (29 kW) and 903 cc. This proved adequate for this light car which weighed in at about 680 kg. A 60 PS (44 kW) kit to make a more powerful SEAT Panda Abarth version was also on offer, sold in Spain by a company called Apicsa. Shortly after introduction, a smaller-hearted version corresponding to the Italian two-cylinder model was added. Called the "Panda 35", it had a smaller 843 cc version of the engine, a development of the engine originally fitted to the SEAT 850 beginning in the mid-sixties. To set it further apart from the "45", a lower compression rate was chosen. Nonetheless, the smaller engine had to work that much harder to keep up, and in practice the fuel economy savings were negligible.
When the Marbella was introduced in December 1986, the smaller 843 cc version continued to be available. This low-priced version produced only 34 PS (25 kW) at 5,600 rpm and was not available with the five-speed transmission. Top speed for the bigger engine was 131 km/h (81 mph), while the 850 could only reach 125 km/h (78 mph).
In March 1991 a catalyzed version of the 903 cc engine was added to the lineup, as emissions rules across Europe were tightened. This version benefited from an electronically controlled carburetor and electronic ignition. Top speed crept up to 135 km/h (84 mph).
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