Basic information and history

The Porsche 928 S4 was presented as a further development of the 928 with improved aerodynamics, higher power and upgraded braking technology. The 1988 model year combines a 5.0 liter V8 with 32 valves and a transaxle layout for balanced weight distribution. The S4 also received more efficient cooling and improved airflow in the front of the body, something that distinguishes the model visually and technically from previous model years.

This Swedish-sold example is a 1988 Porsche 928 S4 with an odometer reading of 157,000 km. The seller has owned the car for 25 years and describes the car as well cared for and stored indoors. According to reports, the car has only had 5 owners over the years and not all owners are users. The paint has been polished and sealed. Pirelli tires are mounted, according to the seller correct for the model in original design. There is a saved history from new, including service book and extensive documentation.

The information in this ad is based on information provided by the seller.

Equipment and options

• 5-liter V8 with 320hp/430nm
• Black leather interior
• Power seats for driver and passenger
• Air conditioning
• Fitted quilt
• Automatic transmission

Modifications and improvements No changes to the drivetrain or chassis are stated. The paint is polished and sealed. Otherwise, no modifications that deviate from the original design are documented by the seller.

Condition

Body and exterior condition The paintwork is stated to be in good condition with improved stone chips in the front and on the rear-view mirrors. There is a barely noticeable dent in the right rear. The windscreen has stone chips. The windscreen trim on one side needs to be pressed in place occasionally. Other trims, headlight lenses and emblems are described as being in good condition with normal age-related wear.

Interior The interior is described as being in very good condition. The driver's seat has slight scuffs. The headliner is said to be in new condition. The steering wheel, controls and buttons have no reported defects. There is a small, neatly repaired mark on the driver's side entry.

Tires and rims Pirelli tires with good tread depth but older. Rims may have very small scuff marks.

Mechanics and function The engine, gearbox and driveline are reported to be in very good condition with no known faults. The brakes are in good condition and according to the seller the car has hardly been driven in the rain. The air conditioning system does not cool properly and needs service with a refill.

Service history

The service book is filled out according to the manufacturer's intervals. The car has been serviced regularly, both at a workshop and in-house. There is a lot of documentation saved from new, including previous service records and receipts. This supports the stated odometer reading and the ongoing maintenance.

Summary

A 1988 Porsche 928 S4 with 157,000 km and long-term ownership of 25 years is offered with documented service history and stored indoors according to the seller. Cosmetically there are improved stone chips, a discreet dent on the right rear and a stone chip in the windshield. The interior is well preserved with light scuffing on the driver's seat and otherwise a very good impression. Mechanically the car is said to be healthy with good brake feel, while the air conditioning system needs service. For those looking for a well-maintained 928 S4 with good documentation, this example appears to be an interesting alternative.