Porsche 928
1977–1995
Lowest price
$19,651
Since 2020
Median price
$29,500
Since 2020 · n=8
Highest price
$40,750
Since 2020
Sold cars
8
All time
Sell-through
100%
Of 8 lots

Based on 8 verified auction results
$58,000
Market value · recent verified sales
-1.8%
12-month change
Fair Entry
Stable prices. Negotiate on spec and condition.
Prices have been flat (-1.8%). No strong directional signal.
MSRP
—
Collectibility
4/10
Modest Demand
3-Year Forecast
$55,495
-4%
5-Year Forecast
$54,721
-6%
Market scores
38
Desirability
Thin
30
Liquidity
Moderate
50
Resale Outlook
Option premiums
What every option is worth.
Manual gearbox
+$15,887+54%18 with · 14 without · high confidence
Built ≤ 1987
−$10,138-34%32 with · 32 without · high confidence
Sunroof / glass roof
−$5,418-18%9 with · 56 without · high confidence
Limited-slip diff
−$2,247-8%3 with · 62 without · low 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 Porsche 928 in the Australian market is trading at a median of AUD $58,000, down 1.8 percent over the past year, with a hold signal suggesting current valuations reflect fair equilibrium. The modest negative momentum sits against a stable classification, indicating the model is neither appreciating nor deteriorating sharply in collector favor.
Supply is not a constraint: with 61,056 examples produced across its production run, the 928 occupies the broad middle ground of Porsche's output, which naturally limits upside for scarcity-driven appreciation. The car ranks at collectibility score 4 with modest demand, and desirability remains low—typical for front-engine Porsches that lack the cultural cachet of the 911 or the investment trajectory of air-cooled variants.
Liquidity remains thin across the Australian market, with only five tracked sales over the past twelve months and eight total in the dataset. The absence of current active listings suggests supply may tighten temporarily, but the low turnover reflects constrained buyer interest rather than scarcity value.
Base projections trend modestly downward: analysts expect AUD $55,495 (down 4.3 percent) by year three and AUD $54,721 (down 5.7 percent) by year five. Depreciation drivers include aging electrics, climbing maintenance costs, and persistent competition from newer Japanese sports cars in the secondhand market.
For buyers seeking entry into 928 ownership at fair value, current levels offer reasonable entry without expectation of appreciation. Prospective sellers should recognize the market's measured disinterest and price accordingly.
Depreciation Benchmark
- Current avg value$58,000
- Annual appr. rate-1.8%/yr
Vehicle History Signals
- Auction lots tracked67
- Damage or salvage declared0 (0.0%)
- No damage declared67 (100.0%)
Est. Annual Ownership Costs
- Insurance (agreed value)$910
- Maintenance$1,830
- Storage$4,870
- Depreciation$3,450
- Total annual cost$11,060
Market Liquidity
- Active Listings0
- Sales Last 12 Months2
- Sell-Through25%
Market Snapshot
- Active Listings0
- Avg Sale Price$31,135
- Avg Mileage at Sale—
- Recent Price Range$19,651 – $40,750
- Total Sales Tracked8
Recent sales
Showing latest 8Indicative only — not investment advice. Past performance is not a reliable indicator of future value.