The Good
The 1987 Porsche 928 S4 offers exhilarating V8 performance and exceptional long-distance comfort, appealing to emotional buyers with its unique, timeless design and powerful presence. Practically, it's a surprisingly spacious 2+2 grand tourer with advanced engineering for its era. While efficiency isn't its strong suit, its robust build quality, if maintained, can offer enduring value for enthusiasts.
The Bad
Known weaknesses for the 1987 Porsche 928 include its complex electrical systems, particularly the central electric panel, and expensive, critical timing belt services. Owners should also watch for cooling system issues, vacuum leaks, aged rubber fuel lines, and potential problems with the torque tube bearings. Parts and specialist labor are costly.
1987 Porsche 928: Quick Overview
- Engine Options: The 1987 Porsche 928 was primarily offered in the S4 trim, featuring a 5.0-liter (4,957 cc) DOHC 32-valve V8 engine (M28/41 or M28/42 for automatic). This marked a significant upgrade over previous models.
- Horsepower: The 5.0L V8 in the 1987 928 S4 produced a robust 316 horsepower (235 kW) and 317 lb-ft of torque (430 Nm) for the US market. European models often had slightly higher outputs.
- Fuel Economy: Given its performance-oriented V8 engine, fuel economy is not a strong suit. Owners can expect around 14-16 MPG in city driving and 18-22 MPG on the highway, with combined averages typically in the 15-18 MPG range, depending on driving style and transmission.
- 0-60 Times: The 1987 928 S4 was a quick performer for its time, with 0-60 mph acceleration times typically in the range of 5.7 to 6.0 seconds for manual transmission models, and slightly slower for automatic variants.
- Towing Capacity: While not typically marketed or recommended for towing in the North American market, some European models of the 928 were rated for a modest towing capacity, usually around 1,500-2,000 lbs (680-900 kg). However, it's generally not advised or practical for serious towing.
- Trim-Level Features (S4): The 928 S4 was exceptionally well-equipped. Standard features included power-assisted steering, powerful four-wheel disc brakes with ABS (Anti-lock Braking System), automatic climate control, full leather interior (seats, door panels), power windows, power adjustable seats, central locking, and an upgraded premium stereo system. Externally, the S4 was distinguished by its revised front and rear bumpers, integrated fog lights, and a prominent rear wing for improved aerodynamics. Optional features included an automatic transmission (a popular choice), a limited-slip differential, electric sunroof, and upgraded sport seats.
1987 Porsche 928 Specifications
Vehicle Information
| Year | 1987 |
| Make | Porsche |
| Model | 928 |
| Trim | - |
| Style | - |
| 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 | - |
| Overall Length | - |
| Overall Width | - |
| Wheelbase Length | - |
| Standard Seating | - |
Engine & Performance
| Engine | 5.0-L V-8 DOHC 32V |
| Engine Size | 5L |
| Engine Cylinders | 8 |
| Transmission | Automatic |
| Transmission Type | Automatic |
| Transmission Speeds | - |
| Drivetrain | Rear-Wheel Drive |
Additional Features
| Anti-Brake System | - |
| Steering Type | - |
Pricing
| Manufacturer Suggested Retail Price (MSRP) | - |
| Invoice Price | - |
| Delivery Charges | - |
Vehicle History Report
Specifications
History
Events
History Check
Check
Check
Check
Check
Listings
Recalls
Check
Analysis
What Problems Does the 1987 Porsche 928 Have?
Another critical maintenance item is the timing belt service. The 928's V8 is an interference engine, meaning a failed timing belt will result in catastrophic engine damage. This service is expensive and must be performed religiously, typically every 5 years or 60,000 miles, along with the water pump and tensioners.
The cooling system is another area of concern. Radiators can become clogged or corroded, hoses and plastic fittings degrade, leading to leaks and overheating. The water pump can also fail.
Vacuum leaks are common due to aging rubber lines, affecting idle quality and overall engine performance. Similarly, the original rubber fuel lines are prone to perishing and cracking, posing a fire risk if not replaced.
The torque tube, which houses the driveshaft, contains bearings that can fail over time, resulting in significant driveline noise and requiring costly repair.
Inside, the HVAC system is known for issues with blower motors, blend door actuators, and climate control unit failures.
Regarding recalls, many original factory recalls for early 928s would have been addressed decades ago. However, the underlying design complexities and use of specific materials mean that these issues are inherent long-term reliability concerns rather than one-off defects. For the 1987 S4, these general issues apply uniformly, with specific attention often needed for the updated engine's associated components. Long-term reliability is directly proportional to diligent maintenance and proactive replacement of age-related wear items.
How long will the 1987 Porsche 928 last?
Over time, weaknesses emerge primarily from the aging of ancillary systems and materials. The complex electrical system, with its numerous relays and wiring, often deteriorates, leading to intermittent failures. Rubber and plastic components, such as hoses, seals, bushings, and vacuum lines, become brittle and crack, causing leaks or performance issues. The climate control system is notoriously prone to age-related failures. Interior elements like leather upholstery can show wear, cracking, or fading, and paint can suffer from clear coat degradation. Neglected maintenance, especially skipping critical timing belt services, will severely curtail its lifespan. This is a car that rewards proactive care.
What Technology & Safety Features are Included?
For entertainment, the S4 typically came equipped with a premium sound system, often a high-end Blaupunkt head unit with a cassette deck. While not "infotainment" by modern standards, these systems offered good audio quality. Optional features might have included an upgraded amplifier, additional speakers, or a trunk-mounted CD changer, though CD changers became more common in later model years.
Driver-assistance features were rudimentary compared to today's standards but advanced for the late 1980s. The most significant driver-assistance technology was the standard Anti-lock Braking System (ABS), which greatly enhanced braking safety and control, especially in adverse conditions. There were no features like adaptive cruise control, lane-keeping assist, or blind-spot monitoring.
In terms of safety, the 928 was built with a strong emphasis on structural integrity. It featured a very rigid unibody chassis, designed with robust crumple zones for passenger protection. Three-point seatbelts were standard for front occupants. While later 928 models would incorporate airbags, the 1987 S4 did not typically include them. Crash-test ratings from modern organizations like NHTSA or IIHS are not available for classic cars of this vintage, as testing methodologies and requirements have evolved significantly. However, its substantial weight, solid construction, and advanced braking system for the period contributed to a high level of passive safety for occupants.
What Colors Options are Available?
1987 Porsche 928 Prices and Market Value
Today, current used market prices are highly variable. Project cars needing significant work can be found for $5,000-$15,000. Good, driver-quality examples generally range from $15,000-$30,000. Pristine, low-mileage, well-documented cars with comprehensive service histories can command $30,000 to $60,000 or more, with exceptional examples occasionally reaching higher. Factors significantly affecting resale value include overall condition, complete service records, originality, mileage, manual transmission (which is rarer and more sought-after), and desirable color combinations. A poorly maintained 928 will fetch a fraction of a well-preserved one.
1987 Porsche 928 Cost of Ownership
Maintenance and repair costs are very high. Parts, many of which are Porsche-specific, are expensive and can be difficult to source. Specialist labor is often required, driving up hourly rates. Critical services like the timing belt replacement are substantial expenses. Common issues like electrical problems, cooling system overhauls, and aged rubber component replacements add up quickly. This is a passion car for owners with a dedicated budget for its upkeep, not a budget-friendly daily driver.
1987 Porsche 928 Fuel Efficiency
1987 Porsche 928 Recalls & Defects
Engine and Engine Cooling:exhaust System:emission Control:catalytic Convertor
Fuel System, Gasoline:delivery:hoses, Lines/Piping, and Fittings
1987 Porsche 928 Warranty
Basic
Powertrain
Rust
1987 Porsche 928 Insurance
reasonable repair costs.
How Does the 1987 Porsche 928 Compare to Other Coupe?
In terms of performance, the 928 S4's 316 hp V8 generally outpaced the stately 560SEC and 635CSi in acceleration and offered a more engaging, sporting driving experience with its sophisticated transaxle layout. It was more refined than the raw power of the C4 Corvette, which offered similar straight-line speed but lacked the Porsche's luxurious interior and handling finesse. Compared to a Ferrari 400i/412, the 928 offered comparable or better real-world usability and arguably more robust engineering, though less exotic appeal. The Jaguar XJS, while offering a smooth V12, was typically less dynamic and powerful than the 928 S4.
Features were competitive across the luxury GT segment. The 928 S4 was well-appointed with standard ABS, climate control, leather interior, and power amenities, matching or exceeding its European rivals. The interior design was famously driver-centric and ergonomic.
Reliability is a nuanced comparison. All these older luxury vehicles require significant maintenance. The 928's complexity can lead to expensive repairs, particularly electrical and timing belt services. A well-maintained 928 is robust, but a neglected one is a money pit. Mercedes and BMW of this era were also well-engineered but not immune to age-related issues. The C4 Corvette often had lower parts costs but sometimes lacked the overall build quality of its European counterparts. The Ferrari and Jaguar were known for even higher running costs.
Price new, the 928 was positioned competitively, typically above BMW/Mercedes but below Ferrari. Today, used prices reflect condition more than original hierarchy.
Similar alternatives for a classic grand tourer experience include the Mercedes-Benz 560SEC for a more opulent, boulevard-cruiser feel, or a BMW E24 M6 for a sharper, more focused driving experience. For a more modern and reliable Porsche experience, a used Cayman or a newer 911 would be a better choice, albeit with a different character. If outright V8 performance on a tighter budget is the goal, a C4 Corvette could be considered, though it's a different class of refinement.
Final Verdict: Is the 1987 Porsche 928 a Good Coupe?
Is it worth buying? Absolutely, for the right buyer. It offers an incredibly rewarding driving and ownership experience. However, it's strictly a used purchase, and conditions are paramount. Seek out the best example you can possibly afford, preferably an S4 trim, with an impeccable and comprehensive service history. A pre-purchase inspection by a reputable 928 specialist is non-negotiable. Avoid "bargain" examples unless you possess extensive mechanical skills and deep pockets, as neglected 928s can quickly become financial black holes. This is an investment in a lifestyle and mechanical art, not a practical daily driver for the budget-conscious.