Porsche 911 (991) GT3

The Porsche 911 991 GT3 has declined sharply over the past year, with the median transaction price falling to £89,750—an 18 percent drop from the prior twelve months. The SELL signal reflects sustained downward pressure across the UK market for this model, with prices showing no sign of stabilization.

Transaction data remains sparse, with only six sales recorded in the past year and twenty-two across the full tracking period, indicating genuinely thin liquidity for buyers and sellers alike. The absence of active listings further suggests limited supply, though this has done little to support pricing—a typical sign that demand has softened more than availability.

The 991 GT3 occupies the stable modern classic tier, classified as collectible with moderate desirability. These cars typically turn up with low mileage; the average across tracked sales sits at just under 10,000 miles, consistent with ownership by enthusiasts who treat them as weekend machines rather than daily drivers.

The three-year projection places the median at approximately £57,158, implying a further 36 percent decline from current levels. Over five years, the base case extends that depreciation to £49,795, a 44 percent drop from today's prices, suggesting the model may still be normalizing toward its true market floor after years of pandemic-era appreciation.

Prospective buyers entering at current prices face additional downside risk, particularly given the thin transaction base and absence of momentum. Sellers should recognize that this window for exit remains open but narrowing as more examples reach the market; waiting typically translates to larger haircuts on eventual disposal.