Mercedes-Benz W108/W109

The Mercedes-Benz W108/W109 segment in the UK market has contracted sharply, with median prices falling to £26,066—a 25% decline over the past year. The sell signal reflects sustained downward momentum rather than a temporary correction, marking a meaningful shift in buyer appetite for this generation.

Liquidity remains severely constrained, with only two recorded sales in the tracked sample over the past twelve months. This thin transaction volume means pricing data carries inherent volatility, and sellers should expect extended holding periods and limited competitive bidding at current asking levels.

Classified as an appreciating classic with moderate desirability, the W108/W109 occupies a middle ground in the Mercedes-Benz collector hierarchy. The model's collectibility score of 6 reflects its historical significance and engineering merit, though it lacks the star-power of earlier 300SL variants or later SL roadsters.

The base projection suggests further erosion ahead: prices are forecast to halve to approximately £13,650 within three years, with continued decline to £11,245 by year five. This downward trajectory reflects both weakening demand within the illiquid segment and broader softening across appreciating classics in the current market environment.

Prospective buyers remain scarce—zero active listings were identified at time of analysis—which constrains seller optionality considerably. The combination of illiquidity, negative pricing momentum, and negative confidence in near-term recovery argues for patience among potential buyers and early action for current holders seeking exit.