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Porsche 959

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Porsche 959: The Technological Tour de Force

The Porsche 959, produced from 1986 to 1993, stands as a monument to Porsche's engineering prowess and a defining moment in automotive history. Originally conceived as a Group B rally car, it evolved into a technologically advanced supercar that redefined performance benchmarks. More than just a fast car, the 959 was a rolling laboratory, showcasing innovations like electronically controlled all-wheel drive, adjustable ride height, and lightweight construction, many of which are commonplace today. It firmly cemented Porsche's position at the forefront of automotive technology and remains highly sought after by collectors worldwide. The 959 belongs to the supercar class, placing it alongside icons like the Ferrari F40 and Lamborghini Countach, though its technological sophistication set it apart.

Generations

The Porsche 959 primarily saw one distinct generation, although there were notable updates during its production run.

  • 1986-1993: 959 (Typ 959)
    • Key Changes: The initial production run featured the 959 Komfort, the standard road-going model. Later, the 959 Sport (also known as the 959S) was introduced, offering increased power (up to 508 hp) and reduced weight. This was achieved through a lighter interior, no adjustable suspension or rear seats. Interior trims also varied across production years with some having cloth seats and others full leather. The Sport model is easily identifiable by its roll cage, which was a factory option.

Reliability & Common Issues

Despite its technological complexity, the Porsche 959 is generally considered reliable for a supercar of its era, provided it receives proper maintenance. However, due to its advanced systems and limited production numbers, maintenance and repairs can be expensive and require specialized expertise.

Engine

The 2.85-liter twin-turbocharged flat-six engine is robust, but some common issues include:

  • Turbochargers: The two KKK turbochargers are susceptible to wear and tear, especially with age and improper maintenance. Rebuilding or replacing them can be costly. Boost leaks can occur and are usually easily fixed.
  • Oil Leaks: The engine can suffer from oil leaks, particularly from seals and gaskets. Regular inspections and timely repairs are crucial.
  • Valve Train: Check valve clearances regularly as any ticking noises can indicate worn or damaged valve train components.
  • Fuel System: The fuel injection system and fuel pumps can degrade over time, leading to performance issues.

Transmission & Drivetrain

The sophisticated electronically controlled all-wheel-drive system (Porsche-Steuer Kupplung, or PSK) is a marvel of engineering, but also a potential source of problems:

  • PSK Malfunctions: The PSK system relies on various sensors, actuators, and electronic control units. Failures in any of these components can lead to erratic all-wheel-drive behavior, including warning lights and reduced performance. These malfunctions can be difficult to diagnose and expensive to repair.
  • Clutch Wear: Due to the high performance and the PSK system's demands, the clutch can experience accelerated wear.
  • Gearbox: While generally robust, the gearbox can suffer from wear in the synchromesh rings, leading to difficult shifting.

Suspension & Brakes

The adjustable suspension system provides excellent handling and ride comfort, but also adds complexity:

  • Suspension Actuators: The electronically controlled dampers and actuators can fail, resulting in uneven ride height or handling issues.
  • Brake System: The braking system, while powerful, requires regular maintenance. Check brake lines, rotors, and calipers for signs of wear or corrosion. The ABS system can be problematic if neglected.

Electronics

Given the 959's age, electronic components are a common source of issues:

  • ECU Failures: The engine control unit (ECU) and other electronic control modules can fail due to age and heat. Replacement or repair may be challenging, and sourcing parts can be difficult.
  • Wiring Harness: The wiring harness can become brittle and prone to cracking over time, leading to electrical faults.
  • Sensors: Numerous sensors throughout the car (e.g., temperature sensors, pressure sensors) can fail, causing performance issues or warning lights.

General Maintenance

  • Specialized Technicians: Regular maintenance should only be performed by qualified technicians with experience working on the 959.
  • Parts Availability: Sourcing genuine Porsche 959 parts can be challenging and expensive.
  • Proper Storage: If the car is not used frequently, it should be stored properly to prevent issues related to fuel degradation, battery drain, and corrosion.

Driving Experience

The Porsche 959 offers a driving experience that is both exhilarating and refined. It's not just about raw power; it's about the seamless integration of technology and performance.

Pros:

  • Incredible Performance: The twin-turbocharged engine provides breathtaking acceleration and a broad powerband.
  • Exceptional Handling: The all-wheel-drive system and adjustable suspension provide unparalleled grip and stability, making the car feel sure-footed and confident in all conditions.
  • Advanced Technology: The 959 is packed with innovative technologies that enhance the driving experience and make it a true marvel of engineering.
  • Comfortable Ride: Unlike many other supercars of its era, the 959 offers a surprisingly comfortable ride, making it suitable for long-distance driving.
  • Iconic Status: Owning a 959 is a statement. It's a highly sought-after collector's item with a rich history and a legendary reputation.

Cons:

  • Complexity: The 959's complex systems can be intimidating and require specialized knowledge to maintain.
  • Maintenance Costs: As discussed earlier, maintenance and repairs can be expensive and require specialized expertise.
  • Age: Despite its advanced technology, the 959 is still an older car, and some aspects of its performance may not match modern supercars.
  • Rarity: Finding a well-maintained 959 for sale can be challenging, and prices are very high.

Buying Advice

Purchasing a Porsche 959 is a significant investment. Here's what to look for and avoid:

Years to Look For:

  • Later Production Models (1988-1993): These models typically benefit from minor improvements and updates implemented during the production run.
  • 959 Sport (959S): If ultimate performance is your priority, the 959 Sport offers increased power and reduced weight, but at the expense of some comfort features. Be prepared to pay a premium.

What to Avoid:

  • Neglected Examples: Avoid cars with a patchy service history, signs of neglect, or evidence of accident damage.
  • Heavily Modified Cars: Unless the modifications were performed by reputable specialists, avoid cars with extensive aftermarket modifications, as they may compromise reliability and value.
  • Cars with Unexplained Warning Lights: Be wary of cars with persistent warning lights, especially those related to the PSK system, engine management, or suspension.

Pre-Purchase Inspection:

Before committing to a purchase, always have the car thoroughly inspected by a qualified Porsche 959 specialist. This inspection should include:

  • Engine Compression Test: To assess the engine's overall health.
  • Turbocharger Inspection: To check for signs of wear or damage.
  • PSK System Check: To ensure proper functioning of the all-wheel-drive system.
  • Suspension System Inspection: To check for leaks, damage, or worn components.
  • Electrical System Scan: To identify any stored fault codes.
  • Bodywork Inspection: To check for signs of accident damage or corrosion.
  • Review Service Records: To verify the car's maintenance history and identify any recurring issues.

Pricing Considerations:

Porsche 959 prices vary depending on condition, mileage, and provenance. Expect to pay a significant premium for well-maintained examples with low mileage and a complete service history. Prices typically range from $1 million to well over $2 million, and continue to appreciate. It is a true investment and an incredible machine.

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