Mercedes-Benz SL (R129)
1989–2001
Lowest price
US$3,100
Since 2020
Median price
US$19,750
Since 2020 · n=83
Highest price
US$63,500
Since 2020
Sold cars
83
All time
Sell-through
100%
Of 83 lots

Based on 83 verified auction results
US$19,000
Market value · recent verified sales
+2.5%
12-month change
Fair Entry
Stable prices. Negotiate on spec and condition.
Prices have been flat (+2.5%). No strong directional signal.
MSRP
—
Collectibility
3/10
Modest Demand
3-Year Forecast
US$19,000
+0%
5-Year Forecast
US$19,000
+0%
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Market scores
63
Desirability
Moderate
55
Liquidity
Moderate
50
Resale Outlook
Option premiums
What every option is worth.
Sunroof / glass roof
+US$3,395+17%6 with · 137 without · med confidence
Built ≤ 1998
−US$1,580-8%78 with · 50 without · high confidence
Hardtop included
−US$1,574-8%46 with · 97 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 has settled at a median price of $19,000 in the US market, with a modest year-over-year gain of 2.5 percent over the past twelve months. The HOLD signal reflects stability rather than momentum, suggesting the model has found an equilibrium in the collector space.
Trading activity remains measured, with 29 transactions recorded over the past year from a broader tracked sample of 83 sales. This moderate liquidity level indicates reliable availability for buyers but without the depth that would support sharp price appreciation. Five active listings currently on market suggest steady dealer and private inventory.
The R129 generation carries modest collectibility scoring despite a relatively large production run of over 213,000 units. Desirability remains high among enthusiasts, particularly for well-maintained examples, though the broad production volume constrains scarcity value and typical price caps. Condition and mileage variation significantly influence individual car valuations within the model class.
Average mileage on transacted examples sits near 50,200 miles, pointing toward well-preserved or lightly-used specimens entering the secondary market. This figure suggests the model appeals to owners seeking accessible classics with manageable wear rather than pristine investment-grade machines.
Base projections model flat pricing through both the three- and five-year outlook, with values holding steady at $19,000. The stability forecast reflects the R129's established position as a stable modern classic without the scarcity drivers or enthusiast infrastructure needed to command appreciation. Buyers and sellers should expect continued supply-demand balance at current market levels.
Depreciation Benchmark
- Current avg valueUS$19,000
- Annual appr. rate+2.5%/yr
Vehicle History Signals
- Auction lots tracked188
- Damage or salvage declared0 (0.0%)
- No damage declared188 (100.0%)
Est. Annual Ownership Costs
- Insurance (agreed value)US$600
- MaintenanceUS$1,210
- StorageUS$3,220
- Depreciation— (appreciating)
- Total annual costUS$5,030
For sale now · 5 live
All live deals
1997 Mercedes-Benz SL600 RENNTech SL74
US$105,000+453% vs market
US

41k-Mile 1998 Mercedes-Benz SL600
US$19,000+0% vs market
US

50k-Mile 2001 Mercedes-Benz SL500
US$18,250-4% vs market
US

1998 Mercedes-Benz SL500
US$13,500-29% vs market
US

50k-Mile 2001 Mercedes-Benz SL500
US$21,000+11% vs market
US · ends in 10h
Market Liquidity
- Active Listings5
- Sales Last 12 Months83
- Sell-Through100%
Market Snapshot
- Active Listings5
- Avg Sale PriceUS$22,682
- Avg Mileage at Sale50,223 mi
- Recent Price RangeUS$3,100 – US$63,500
- Total Sales Tracked83
Recent sales
Showing latest 20US$26,250
Bring a Trailer · 9 Oct 2026
50,000 mi
Brilliant Silver Metallic · automatic
US$45,500
Bring a Trailer · 6 Oct 2026
41,000 mi
Brilliant Silver Metallic · 5-speed automatic
US$10,250
Bring a Trailer · 3 Oct 2026
Signal Red · automatic
US$27,500
Bring a Trailer · 2 Oct 2026
45,000 mi
Brilliant Silver Metallic · 5-speed automatic
US$13,500
Bring a Trailer · 30 Sept 2026
Black · automatic
US$9,600
cars-and-bids · 28 Sept 2026
69,000 mi
automatic
US$39,750
Bring a Trailer · 27 Sept 2026
31,000 mi
Magma Red · automatic
US$10,450
mecum · 26 Sept 2026
Red · Automatic
US$8,800
mecum · 26 Sept 2026
Silver · Automatic
US$50,000
Bring a Trailer · 26 Sept 2026
Slate Blue Metallic
Common questions
What is a Mercedes-Benz SL (R129) worth in 2026?
The current United States market median is US$19,000, based on 29 verified auction sales. Recent sales ranged from US$3,100 to US$63,500.
Is the Mercedes-Benz SL (R129) going up in value?
Over the last 12 months its United States median moved +2.5%. Past movement is not a guarantee of future value.
How many Mercedes-Benz SL (R129)s are for sale right now?
We track 5 live auction listings for this model right now — each priced against the market median on this page.
Indicative only — not investment advice. Past performance is not a reliable indicator of future value.