1988 Porsche 928 S4 The 1988 Porsche 928 S4 featured here is available in black exterior with black leather interior with odometer reading under 70,000 miles. It comes equipped with automatic transmission, power windows, power seats, air conditioning, 2 sets of wheels and the spare tire. Very clean and presentable. Mechanically sound. For $19,950If you have any additional questions Please call 310-975-0272 or email with any questions! We also welcome all international buyers. We can help with shipping quotes and arrangements.