Porsche 911S (LWB)
Flagged undervalued because -75% vs 2-yr avg, -74% vs 3-yr trend, and inventory +0%.
What It's Actually Worth
Blended value of a standard 52 yr, 42k mi example, ~$79.5K now. The green line weighs confirmed auction sales most heavily (the amber dots — what cars actually hammered for), blends in fast-selling "just-missed" listings, and lightly smooths out month-to-month composition noise.
Did our model work? 67% direction calls right
Each faint amber line is a forecast we would have made at that point in the past (12-mo horizon), drawn against what actually happened (blue). Over 93 scored forecasts: 67% got the direction right, median value error ±254%.
Walk-forward: each ghost uses only data available at that date — no hindsight. Data-backed market intelligence, not a guaranteed prediction. Figures are modeled estimates from asking prices, sold comps, and public economic indicators; they can be wrong. Not financial advice.
Auction Scorecard gavel in range 7 in 10
We replayed 220 past auctions in this market — predicting each hammer price from market data before the sale (no hindsight). Typical miss: ±46%; the gavel landed inside our predicted range 7 in 10 of the time, and we lean slightly high on average.
| Sold | Car | Our range | Hammer | |
|---|---|---|---|---|
| 2026-06-30 | 1973 · 148k mi | $36.5K–$134K | $105K | ✓ |
| 2026-06-17 | 1969 · 52k mi | $44.9K–$165K | $31.3K | ✗ |
| 2026-06-09 | 1972 · 34k mi | $44.7K–$164K | $32.8K | ✗ |
| 2026-06-03 | 1972 · 2k mi | $51.7K–$189K | $185K | ✓ |
| 2026-06-02 | 1971 · 22k mi | $52.1K–$191K | $88.0K | ✓ |
| 2026-05-21 | 1973 · 44k mi | $46.0K–$169K | $64.1K | ✓ |
| 2026-05-21 | 1969 · 79k mi | $48.1K–$176K | $38.5K | ✗ |
| 2026-05-18 | 1970 · 72k mi | $48.9K–$179K | $85.0K | ✓ |
Live now — calling it before the gavel
We're currently tracking 8 open auctions in this market. Here's our predicted hammer range for each — check back after they close.
| Closes | Car | Source | Our predicted range |
|---|---|---|---|
| open | 1969 · 30k mi | classic | $37.4K–$201K ($86.7K) |
| open | 1969 · 1k mi | ebay | $44.3K–$238K ($103K) |
| open | 1973 · 10k mi | BaT | $28.8K–$155K ($66.9K) |
| open | 1969 · 1k mi | ebay | $44.6K–$240K ($103K) |
| open | 1972 · 25k mi | classic | $40.4K–$217K ($93.7K) |
| open | 1973 · 37k mi | hemmings | $35.2K–$189K ($81.6K) |
| open | 1970 · 56k mi | classic | $37.0K–$199K ($85.8K) |
| open | 1972 · 0k mi | ebay | $46.5K–$250K ($108K) |
No-lookahead: predictions are made before each auction closes; the scorecard grades confirmed sold auctions only (no-sales excluded). A modeled estimate, not a guarantee. Data-backed market intelligence, not a guaranteed prediction. Figures are modeled estimates from asking prices, sold comps, and public economic indicators; they can be wrong. Not financial advice.
Where We Think It's Headed
Probability and range, not a single number. Wider = less certain (not bigger gains).
| Horizon | Direction | Probability | Confidence | Past accuracy |
|---|---|---|---|---|
| 6 mo | UP | 52% | Low | 62% |
| 12 mo | UP | 54% | Low | 67% |
| 24 mo | UP | 55% | Low | 79% |
Data-backed market intelligence, not a guaranteed prediction. Figures are modeled estimates from asking prices, sold comps, and public economic indicators; they can be wrong. Not financial advice.
If You’d Bought in 2007
$100K invested 2007-08 → today (18.9 yrs), this car vs where else you could've put the money. Rebased to 100 at the start; the dashed line is inflation (break-even).
What This Market Follows
Specialty-car prices don't move in a vacuum. These economic indicators have historically led this market — tap one to see it shifted forward by its lead time, overlaid on the value line.
Advance Retail Sales leads by about 5 months (moves with this market, correlation 0.86). Shown shifted forward 5 months so its turns line up with the market's.
Why We Think This
Current Inventory Snapshot
Comparable Markets
| Market | Undervaluation | Appreciation | Liquidity |
|---|---|---|---|
| Alfa Romeo 105 Sedan | 93 | 93 | 17 |
| Mercedes-Benz 190SL | 38 | 43 | 39 |
| BMW 2002 tii | 46 | 74 | 20 |
| Datsun 240Z | 41 | 56 | 38 |
| Datsun 280Z | 32 | 66 | 60 |
| Ferrari 308 | 38 | 64 | 34 |
| Ferrari 308 GT4 | 51 | 54 | 26 |
| Ferrari 328 | 58 | 46 | 42 |
Recent Signals & Alerts
- price jump Median asking moved sharply (z=4.2)
- price jump Median asking moved sharply (z=6.7)
- price jump Median asking moved sharply (z=4.1)
Data-backed market intelligence, not a guaranteed prediction. Figures are modeled estimates from asking prices, sold comps, and public economic indicators; they can be wrong. Not financial advice.