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United Kingdom market

Mercedes-Benz SL (R129)

1989–2001

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  • Lowest price

    £3,600

    Since 2020

  • Median price

    £13,760

    Since 2020 · n=43

  • Highest price

    £340,000

    Since 2020

  • Sold cars

    43

    All time

  • Sell-through

    100%

    Of 43 lots

Mercedes-Benz SL

Based on 43 verified auction results

HOLDAppreciatinghigh confidence

£13,723

Market value · recent verified sales

+23.4%

12-month change

Hold or Wait

Appreciating but pace slowing. Patient buyers may find better entry.

Median sold price up 23.4% over the last 12 months. Hold if owned; chasing the trend at peak carries risk.

MSRP

Collectibility

3/10

Modest Demand

3-Year Forecast

£22,014

+60%

5-Year Forecast

£25,770

+88%

Market scores

48

Desirability

Moderate

55

Liquidity

Excellent

85

Resale Outlook

Option premiums

What every option is worth.

  • Right-hand drive

    £6,444-47%

    13 with · 4 without · low confidence

  • Sunroof / glass roof

    £2,145-16%

    4 with · 112 without · low confidence

  • Hardtop included

    £1,202-9%

    33 with · 83 without · high confidence

  • Built ≤ 1998

    £512-4%

    71 with · 35 without · high confidence

Premiums compare the median price of sales with each option against comparable sales without it, mined from verified auction listings. Prices are adjusted to the model's median mileage before comparing. Sales are pooled across markets on a relative-price basis, so exchange rates and market levels can't skew the split. Options interact in ways a one-at-a-time split can’t capture — treat each premium as directional rather than gospel.

Marque analyst note

The Mercedes-Benz SL R129 median price stands at £13,723 in the UK market, having appreciated 23.4% over the past twelve months. This upward momentum carries a HOLD signal, reflecting steady gains without the volatility typical of speculative segments.

Transaction volume remains modest, with twelve sales tracked over the past year and forty-three total records across the dataset. This moderate liquidity suggests buyers will encounter limited selection but face less competition than in higher-volume segments, creating a reasonably balanced market environment.

Production volume of over 213,000 units positions the R129 as a volume platform rather than a scarce collectible. Classified as a stable modern classic with modest demand, the model's desirability rests on its storied Mercedes engineering and iconic roadster proportions rather than rarity value. Condition and specification variations meaningfully affect individual car valuations within this broad cohort.

Transacted cars average 26,777 miles, typical for vehicles of this era and market. The relatively low recorded mileage suggests buyers and sellers remain focused on examples showing responsible use and maintenance, standard practice for this class.

Base projections indicate the R129 could reach £22,014 (60.4% appreciation) within three years and £25,770 (87.8% gain) within five years. These compound growth rates reflect underlying supply constraints—the model is no longer in production—and steady broadening interest in 1990s Mercedes roadsters as younger collectors enter the market.

Depreciation Benchmark

  • Current avg value£13,723
  • Annual appr. rate+23.4%/yr

Vehicle History Signals

  • Auction lots tracked117
  • Damage or salvage declared0 (0.0%)
  • No damage declared117 (100.0%)
No damage or salvage declarations found in the titles and descriptions of the auction lots we track for this model. That's a good sign, not a guarantee — always commission a professional inspection and history check before buying.

Est. Annual Ownership Costs

  • Insurance (agreed value)£450
  • Maintenance£900
  • Storage£2,400
  • Depreciation— (appreciating)
  • Total annual cost£3,750
This car has historically appreciated — carrying cost is offset by value growth, not eroded by depreciation.

Market Liquidity

  • Active Listings0
  • Sales Last 12 Months12
  • Sell-Through28%

Market Snapshot

  • Active Listings0
  • Avg Sale Price£22,902
  • Avg Mileage at Sale26,777 mi
  • Recent Price Range£3,600 – £340,000
  • Total Sales Tracked43

Recent sales

Showing latest 20
  • £6,250

    the-market · 25 Jun 2026

  • £35,000

    Collecting Cars · 18 Jun 2026

  • £31,250

    Collecting Cars · 15 May 2026

  • £7,400

    Collecting Cars · 9 Dec 2025

  • £8,240

    the-market · 3 Dec 2025

  • £9,000

    Collecting Cars · 20 Nov 2025

  • £6,890

    the-market · 12 Nov 2025

  • £15,250

    Collecting Cars · 24 Oct 2025

  • £25,000

    Collecting Cars · 21 Oct 2025

  • £12,195

    the-market · 21 Oct 2025

Indicative only — not investment advice. Past performance is not a reliable indicator of future value.