Mercedes-Benz SL (R129)
1989–2001
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

Based on 43 verified auction results
£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%)
Est. Annual Ownership Costs
- Insurance (agreed value)£450
- Maintenance£900
- Storage£2,400
- Depreciation— (appreciating)
- Total annual cost£3,750
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
11,180 mi
£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.