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Porsche

Porsche - 928 (1979)

Ever wondered what is a 1979 Porsche 928 worth these days? The 928, Porsche’s flagship grand tourer of the 1970s, still commands a passionate following among collectors and automotive enthusiasts. While Porsche 928 price today can fluctuate, you’ll find that the 1979 models tend to sit the highest on the market, reflecting their rarity and the original 5‑speed manual’s romantic appeal. In what follows you’ll get a clear, data‑driven snapshot of the car’s key specs, depreciation trends, and how it stacks up in the high‑performance certified‑used market.

  • Model: Porsche 928
  • Year: 1979
  • Engine: 4.5‑liter (4‑NM) 182 kW (250 hp) flat‑6, air‑cooled, non‑supercharged
  • Transmission: 5‑speed manual (standard) or 4‑speed automatic (optional)
  • Fuel: Gasoline
  • Power Output: 250 hp @ 7 200 rpm; 363 lb‑ft torque @ 5 000–5 500 rpm
  • Drive: Front‑engine, rear‑wheel drive
  • Dimensions (L × W × H): 4 879 mm × 1 869 mm × 1 297 mm
  • Wheelbase: 2 754 mm
  • Weight: 1 400–1 460 kg (dependent on options)
  • Top Speed: 235 km/h (146 mph)
  • 0‑100 km/h (0‑62 mph): 7.3–7.9 s
  • Suspension: Independent MacPherson struts (front) and multi‑link (rear)
  • Brakes: 280 mm ventilated discs (front) / 260 mm (rear)
  • Tyres: Front 245 / 45 R18, Rear 255 / 45 R18
  • Price Range (used market): Varies by market, condition, mileage, and provenance – typically quoted between US $18 000–$30 000 for 1979 examples and US $8 000–$18 000 for later year or heavily worn models.

Depreciation Insight

Unlike many modern compact and luxury vehicles, the Porsche 928 depreciation curve is unique. Just as the brand’s early transition from the 911 to the 928 with its front‑mounted V8 bank caused an initial shock in the used market, the 928’s value actually appreciates or holds steady after a certain point of good maintenance. However, the first couple of years still see a notable decline.

  • Typically loses 15 – 20 % of its original value during the first year of ownership, largely due to the high demand for well‑conditioned examples.
  • From years 2 to 5, depreciation slows to roughly 5 – 7 % per year, as supply becomes limited and the brand’s heritage gains market prestige.
  • After 10 years, the 928 may reach a stable value region, with only 1 – 3 % annual drop, assuming reliable maintenance records and minimal mileage.

Thus, a 1979 Porsche 928 is actually a smart long‑term investment if you’re seeking a vehicle that will retain its worth. This trend is evident in auction results where heavily inspected 1979 examples demonstrate near parity with run‑of‑the‑mill 1985‑1990 siblings.

Comparative Context

When you compare a Porsche 928 1979 price to similar grand tourers of the era, a few points stand out: