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
+$19,229+65%17 with · 14 without · high confidence
Built ≤ 1987
−$9,619-33%37 with · 26 without · high confidence
Sunroof / glass roof
−$6,074-21%9 with · 55 without · high confidence
Limited-slip diff
−$2,990-10%3 with · 61 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 Australian Porsche 928 market is trading at a median of AUD $58,000, down 1.8 percent over the past year, signalling a hold position in a sector defined by steady rather than rising momentum. The modest year-on-year decline sits within normal variance for a model class that has stabilized around current price levels without attracting speculative interest.
The 928 occupies a curious position as a production-run modern classic with over 61,000 units built globally—a volume that fundamentally constrains collectibility appeal. This abundance, combined with modest collector demand in Australia, places the model at the lower end of the classic Porsche hierarchy and explains the thin liquidity profile seen in domestic markets.
Transaction activity has been limited, with only five sales recorded over the past twelve months against a tracked sample of eight total examples, indicating sparse turnover and a buyer pool concentrated among practical enthusiasts rather than investment-motivated collectors. The absence of current active listings underscores the challenge for sellers seeking to move stock in a market where buyer competition remains subdued.
Base projections suggest gentle erosion ahead, with valuations expected to settle around AUD $55,495 within three years and AUD $54,721 within five years, representing a cumulative decline of approximately 5.7 percent from current levels. This downward trajectory reflects the headwinds facing high-production-volume front-engined Porsches as the collector market gravitates toward rarer variants and air-cooled models with tighter supply.
Entry opportunities exist for buyers seeking a usable classic Porsche without premium pricing, though sellers should expect patience in marketing and the reality of a structural buyer-to-seller imbalance that favours negotiation discipline on the purchase side.
Depreciation Benchmark
- Current avg value$58,000
- Annual appr. rate-1.8%/yr
Vehicle History Signals
- Auction lots tracked66
- Damage or salvage declared0 (0.0%)
- No damage declared66 (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.