The Porsche 928, produced from 1978 to 1995, was a grand tourer intended to potentially replace the 911. The 1988 model is a refined example of the original concept. It features a distinctive coupe body style with a luxurious interior. Key trims include the standard 928 S4. Pricing ranged significantly depending on condition and mileage, but generally falls in the $20,000 to $60,000 range for well-maintained examples. Its front-engine, V8 configuration set it apart from the rear-engine 911.
The Good
The 1988 Porsche 928 boasts impressive performance from its V8 engine. It's surprisingly comfortable for long journeys. The iconic "shark" design evokes strong emotions. While not the most efficient, it offers a unique blend of performance and practicality for a grand tourer, representing strong value in the classic car market. Reliability can be good with proper maintenance.
The Bad
The 1988 Porsche 928 has known weaknesses, including potential electrical gremlins and cooling system issues. Complex mechanics mean maintenance can be expensive. Watch out for timing belt service history (or lack thereof), and ensure the automatic transmission shifts smoothly, if equipped. Rust can also be a problem in certain climates.
1988 Porsche 928: Quick Overview
Here's a summary of the key specs for the 1988 Porsche 928:
- Engine Options: 5.0L V8
- Horsepower: Approximately 316 hp (depending on market)
- Fuel Economy: Approximately 15 mpg city / 23 mpg highway (varies based on driving conditions)
- 0-60 Times: Around 5.7 seconds (automatic transmission) to 5.5 seconds (manual transmission).
- Towing Capacity: Not recommended or rated for towing.
- Trim-Level Features: The 1988 928 was primarily available as the S4 model. Key features included:
- Leather interior
- Power seats
- Automatic climate control
- Power windows and locks
- Cruise control
- Alloy wheels
- Four-wheel disc brakes with ABS
- Limited-slip differential (optional)
- Sunroof (optional)
- Premium sound system (optional)
- Rear spoiler
- Trip computer
- The S4 improved upon earlier 928 models with refined aerodynamics, larger brakes, and an updated interior. While other packages were available, the S4 included most available options as standard. Minor cosmetic or convenience features might have been added by dealers or owners over time.
1988 Porsche 928 Specifications
Vehicle Information
| Year | 1988 |
| Make | Porsche |
| Model | 928 |
| Trim | - |
| Style | 4-Speed Automatic |
| Type | Coupe |
| Category | Compact Car |
Manufacturing Details
| Made In | Germany |
| Manufacturing City | STUTTGART-ZUFFENHAUSEN |
Dimensions
| Doors | 2-Door |
| Curb Weight | - |
| Gross Vehicle Weight Rating | - |
| Overall Height | 50.20 inches |
| Overall Length | 178.10 inches |
| Overall Width | 72.30 inches |
| Wheelbase Length | 98.40 inches |
| Standard Seating | 4 |
Engine & Performance
| Engine | 5.0-L V-8 DOHC 32V |
| Engine Size | 5L |
| Engine Cylinders | 8 |
| Transmission | 4-Speed Automatic |
| Transmission Type | Automatic |
| Transmission Speeds | 4-Speed |
| Drivetrain | Rear-Wheel Drive |
Additional Features
| Anti-Brake System | 4-Wheel ABS |
| Steering Type | Rack & Pinion |
Pricing
| Manufacturer Suggested Retail Price (MSRP) | $70,030 |
| Invoice Price | - |
| Delivery Charges | - |
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What Problems Does the 1988 Porsche 928 Have?
The 1988 Porsche 928, while a well-engineered vehicle, is prone to certain recurring issues. One frequent concern is the cooling system. Overheating can occur due to radiator clogging, thermostat failure, or issues with the water pump. The timing belt is a critical maintenance item; failure can lead to catastrophic engine damage, so it needs to be replaced according to schedule. Electrical problems are also common, stemming from aging wiring harnesses and complex systems. Issues can range from malfunctioning power windows to more serious problems affecting engine management. The automatic transmission (if equipped) can experience wear and tear over time, leading to rough shifting or failure.
Recalls for the 928 are relatively limited, but it's crucial to check for any outstanding recalls related to safety or emissions. Long-term reliability hinges heavily on diligent maintenance. Components like the fuel pump, fuel injectors, and ignition system can require attention as the car ages. Corrosion can be a concern, particularly in areas with harsh winters or coastal climates. Early 928 models (pre-1983) had different engine management systems, but the 1988 S4 benefits from several years of refinement, though that doesn't eliminate the need for careful inspection and maintenance.
Recalls for the 928 are relatively limited, but it's crucial to check for any outstanding recalls related to safety or emissions. Long-term reliability hinges heavily on diligent maintenance. Components like the fuel pump, fuel injectors, and ignition system can require attention as the car ages. Corrosion can be a concern, particularly in areas with harsh winters or coastal climates. Early 928 models (pre-1983) had different engine management systems, but the 1988 S4 benefits from several years of refinement, though that doesn't eliminate the need for careful inspection and maintenance.
How long will the 1988 Porsche 928 last?
A well-maintained 1988 Porsche 928 can easily exceed 200,000 miles or provide 30+ years of service. Mileage varies drastically based on usage and care. Poor maintenance drastically reduces lifespan. Long-term durability depends heavily on addressing known weaknesses: cooling system, timing belt, and electrical components. Neglecting these will lead to expensive repairs or premature failure. The aluminum engine block is robust, but regular oil changes are essential. The body is generally durable, but rust can develop in certain areas if not properly protected.
What Technology & Safety Features are Included?
The 1988 Porsche 928 featured technology that was advanced for its time, though not as sophisticated as modern vehicles. Entertainment was typically provided by a radio/cassette player, often upgraded with aftermarket options. Optional features included a premium sound system. Driver-assistance features were limited compared to today's standards, primarily consisting of cruise control. The 928 S4 did include ABS (Anti-lock Braking System) as a standard safety feature.
Other safety features included reinforced body construction and front/rear crumple zones. Power-assisted disc brakes on all four wheels provided good stopping power. While not a driver-assistance feature, the limited-slip differential (optional) enhanced traction.
Crash-test ratings from the era are difficult to directly compare to modern standards. Euro NCAP and IIHS ratings were not yet established in the same way. However, the 928 was designed with safety in mind, incorporating features like a strong central passenger cell and energy-absorbing structures. The overall design prioritized passenger protection, consistent with Porsche's engineering philosophy.
Other safety features included reinforced body construction and front/rear crumple zones. Power-assisted disc brakes on all four wheels provided good stopping power. While not a driver-assistance feature, the limited-slip differential (optional) enhanced traction.
Crash-test ratings from the era are difficult to directly compare to modern standards. Euro NCAP and IIHS ratings were not yet established in the same way. However, the 928 was designed with safety in mind, incorporating features like a strong central passenger cell and energy-absorbing structures. The overall design prioritized passenger protection, consistent with Porsche's engineering philosophy.
What Colors Options are Available?
Exterior Colors
Guards Red
Black
Grand Prix White
Silver Metallic
Slate Grey Metallic
Marine Blue
Interior Colors
Burgundy
Black
Linen
Marine Blue
1988 Porsche 928 Prices and Market Value
The 1988 Porsche 928 S4 had a new price of around $70,000 to $80,000. Current used market prices vary significantly, ranging from $20,000 to $60,000+, depending on condition, mileage, and service history. Depreciation was substantial initially, but prices have stabilized and even begun to appreciate for well-maintained examples. Factors affecting resale value include: overall condition, originality, complete service records, low mileage, desirable options (e.g., manual transmission), and paint color. Cars with documented history and no deferred maintenance command premium prices.
1988 Porsche 928 Cost of Ownership
The 1988 Porsche 928 is not an economical car to own. Insurance costs can be moderate to high, depending on coverage. Fuel economy is poor (15-23 mpg). Maintenance and repair costs are significant due to specialized parts and labor. Expect higher long-term ownership costs compared to modern vehicles. Addressing potential issues proactively is crucial to preventing expensive repairs. DIY maintenance can save money, but requires specialized knowledge.
1988 Porsche 928 Fuel Efficiency
Fuel Type
Gasoline
Fuel Capacity
22.70 gallons
City Mileage
15 miles/gallon
Highway Mileage
23 miles/gallon
1988 Porsche 928 Warranty
Basic
Original warranty
0 months / No data
Estimated remaining
Expired
Powertrain
Original warranty
0 months / No data
Estimated remaining
Expired
Rust
Original warranty
0 months / No data
Estimated remaining
Expired
1988 Porsche 928 Insurance
Insurance for a 1988 Porsche 928 is moderately priced, reflecting its status as a Coupe with strong safety ratings and
reasonable repair costs.
reasonable repair costs.
How Does the 1988 Porsche 928 Compare to Other Coupe?
Key rivals to the 1988 Porsche 928 included the Mercedes-Benz 560SEC, Jaguar XJS, and BMW 635CSi. In terms of performance, the 928 offered a unique blend of power and handling, often considered more sporting than the Mercedes and more reliable than the Jaguar. The BMW offered similar handling but less power. Feature-wise, the 928 provided a comparable level of luxury to its competitors. Reliability was a mixed bag; the 928 could be reliable with proper care, but maintenance was more complex and expensive than the BMW. The Mercedes offered similar levels of comfort and reliability, although it lacked the outright performance of the Porsche.
Price-wise, the 928 was generally in the same ballpark as its rivals when new. On the used market, prices vary, but the 928 often holds its value relatively well, particularly for well-maintained examples.
Alternatives? If reliability and lower maintenance costs are paramount, the BMW 635CSi is a good choice. For luxurious grand touring, the Mercedes-Benz 560SEC provides a comfortable and refined experience. If you prioritize the Porsche's specific blend of performance, styling, and grand touring capability, the 928 remains a compelling option.
Price-wise, the 928 was generally in the same ballpark as its rivals when new. On the used market, prices vary, but the 928 often holds its value relatively well, particularly for well-maintained examples.
Alternatives? If reliability and lower maintenance costs are paramount, the BMW 635CSi is a good choice. For luxurious grand touring, the Mercedes-Benz 560SEC provides a comfortable and refined experience. If you prioritize the Porsche's specific blend of performance, styling, and grand touring capability, the 928 remains a compelling option.
Final Verdict: Is the 1988 Porsche 928 a Good Coupe?
The 1988 Porsche 928 is ideal for enthusiasts who appreciate its unique design, powerful V8 engine, and grand touring capabilities. It's worth buying *if* you're prepared for potentially high maintenance costs and can find a well-maintained example with a documented service history. A pre-purchase inspection by a Porsche specialist is essential. Avoid cars with deferred maintenance or unclear histories. The S4 trim is the most desirable for its improved performance and features. It's a rewarding classic for those willing to invest the time and money to keep it running well, but not a practical choice for those seeking inexpensive transportation.
Simon A
Simon is a contributor to VinCheck, where he provides articles and reviews on various automotive topics. His work focuses on delivering accurate and up-to-date information about used cars, helping readers make informed decisions.