According to pca.org(Porsche Club of America), the Porsche 928 S4was built from 1987-1991, and was equipped with a 32-valve 5.0L V8 which produced 316 hp. From 1987-89 a five-speed manual came standard, while a four-speed automatic was optional; the automatic was the only transmission offered during the final two model years. It wasthought that the 928 would replace the iconic rear-engined 911 whe
