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Australia market

Mercedes-Benz 300 SEL 6.3

1968–1972

Add to Garage
  • Lowest price

    $30,000

    Since 2020

  • Median price

    $57,000

    Since 2020 · n=5

  • Highest price

    $80,500

    Since 2020

  • Sold cars

    5

    All time

  • Sell-through

    100%

    Of 5 lots

Mercedes-Benz 300 SEL 6.3

Based on 5 verified auction results

SELLDepreciatingmedium confidence

$40,250

Market value · recent verified sales

-24.2%

12-month change

Wait or Sell

Prices declining. Sellers should consider acting; buyers should wait.

Median sold price down 24.2% over the last 12 months. Loss is likely to continue, especially for this segment.

MSRP

Collectibility

7/10

Highly Collectible

3-Year Forecast

$44,403

+10%

5-Year Forecast

$45,830

+14%

Market scores

44

Desirability

Thin

30

Liquidity

Poor

10

Resale Outlook

Marque analyst note

The Mercedes-Benz 300 SEL 6.3 is trading at a median of AUD $40,250 in the Australian market, down 24.2% over the past 12 months—a significant pullback that signals seller caution. Only three confirmed transactions in that window provide the basis for this reading, marking a thin data set that warrants careful interpretation.

With just 6,526 units produced across its model run, the 300 SEL 6.3 sits solidly in the highly collectible tier, though moderate desirability and tight liquidity constrain near-term momentum. The absence of active listings at present suggests limited fresh supply, which often precedes either stabilization or continued downward pressure when examples do surface.

The 12-month decline sits against a longer-term appreciating-classic classification, indicating the car retains fundamental collector appeal despite recent price softness. Base-case projections forecast recovery to approximately AUD $44,403 within three years and AUD $45,830 by year five—modest gains of 10.3% and 13.9% respectively.

Mileage data on recent transactions remains unreported, limiting assessment of condition norms for this cohort. This gap underscores the importance of independent inspection and provenance verification in a market where comparable inventory is sparse.

The thin transaction count and zero current listings place buyers and sellers in an asymmetric position: sellers face extended hold times or price concessions, while buyers who accept the current pricing may avoid future bidding pressure. Medium confidence in the outlook reflects both the strong foundational collectibility and the thin market evidence supporting trajectory calls.

Depreciation Benchmark

  • Current avg value$40,250
  • Annual appr. rate-24.2%/yr
  • Segment average+3.0 to +9.5%/yr

Vehicle History Signals

  • Auction lots tracked7
  • Damage or salvage declared0 (0.0%)
  • No damage declared7 (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)$910
  • Maintenance$1,830
  • Storage$4,870
  • Depreciation— (appreciating)
  • Total annual cost$7,610
This car has historically appreciated — carrying cost is offset by value growth, not eroded by depreciation.

Market Liquidity

  • Active Listings0
  • Sales Last 12 Months3
  • Sell-Through60%

Market Snapshot

  • Active Listings0
  • Avg Sale Price$54,150
  • Avg Mileage at Sale
  • Recent Price Range$30,000 – $80,500
  • Total Sales Tracked5

Recent sales

  • $40,250

    Collecting Cars · 22 Jun 2026

  • $30,000

    Collecting Cars · 30 Jan 2026

  • $80,500

    Collecting Cars · 23 Sept 2025

  • $63,000

    Collecting Cars · 12 Jun 2025

  • $57,000

    Collecting Cars · 13 Nov 2023

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