Mercedes-Benz SL (R230)

The Mercedes-Benz SL R230 has retreated sharply in the UK market, with the median price now sitting at £12,250—down 19.1 percent over the past year. The SELL signal reflects sustained depreciation pressure across this generation, with high confidence in the trend based on 11 transactions recorded in the past 12 months.

The R230 occupies the stable modern classic tier, a designation that has failed to arrest its decline. With a collectibility score of 5 and moderate desirability, this generation lacks the rarity or compelling period appeal that typically arrests softening values in the broader Mercedes-Benz SL lineage. Average mileage on transacted examples sits at 27,171 miles, indicating well-preserved stock entering the market.

Liquidity remains moderate, supported by 39 total tracked transactions. This trading volume is sufficient for reasonably prompt sales but suggests neither strong collector demand nor consistent institutional buyer interest. Current active listings stand at zero, though the moderate liquidity backdrop indicates cars do move when priced competitively.

The outlook is decidedly bearish. The base case projects the median to fall to £7,570 over three years—a 38.2 percent decline from current levels—and to £6,537 within five years, representing cumulative depreciation of 46.6 percent. This trajectory reflects the R230's positioning as an aging daily-use roadster rather than an appreciating collector asset, with limited tailwinds from nostalgia or production scarcity to support price recovery.

Sellers should factor this depreciation trajectory into exit timing. The combination of sustained year-on-year declines, moderate but not robust liquidity, and weak forward projections suggests further downside risk outweighs any near-term stabilisation.