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Porsche 928 S4 Guide
The 928 S4 variant debuted in the second half of 1986 as a 1987 model, an updated version of the 5.0 L V8 for all markets producing 235 kW; 316 hp (320 PS), sporting a new single-disc clutch in manual transmission cars, larger torque converter in cars equipped with automatic transmission cars and fairly significant styling updates which gave the car a cleaner, sleeker look. S4 was much closer to being a truly world car than previous models with only small differences across markets
The Clubsport was up to 100 kg (220 lb) lighter and became available in 1988. This model was the toned-down version of the 1987 factory prototype which had a lightened body. In 1987, the factory made five white lightweight S4 models with a manual transmission for racecar drivers. The Special Equipment (SE) was a more complete version of the CS, in which some accessories lost in the CS are added back again.