Porsche 928

The Porsche 928 is currently trading at a median of £14,102 in the UK market, down 16.1 percent over the past twelve months and carrying a clear sell signal with high confidence. This depreciation trend aligns with the car's classification as a stable modern classic facing headwinds rather than appreciation drivers.

The sample size of six transacted vehicles over the past year reflects thin liquidity in the 928 segment, making price discovery challenging for both buyers and sellers. With twenty-nine sales tracked historically, the market does show some depth, though current active listings stand at zero, underscoring how sparse availability has become.

At just over 20,700 miles on average across recent transactions, the 928s moving through the market tend to be relatively low-mileage examples, suggesting that condition and preservation matter to buyers despite modest overall demand. The car's classification as a modern classic with modest collectibility scores reflects its position as a secondary-tier sports car within the Porsche lineage.

Production volume of 61,056 units across the 928's manufacturing run means these are far from rare, which directly constrains their collectibility appeal and resale momentum. The moderate desirability rating and thin liquidity environment indicate this is not a car capturing collector enthusiasm at present.

Forward projections paint a steeper decline, with the base case pointing to £9,258 within three years and £8,138 within five years—representing cumulative losses of 34.3 and 42.3 percent respectively from current levels. Unless market sentiment around air-cooled Porsche alternatives shifts materially, the 928 appears locked in a deflationary cycle driven by soft demand and broad depreciation pressure on high-mileage modern classics.