Porsche 911 (964)
The Porsche 911 (964) market registers appreciation momentum at 55.85 and an overvaluation score of 60.89, with depreciation risk at 40.25. A volatile 'up' direction is signaled across 6, 12, and 24-month horizons, with probabilities ranging from 0.52 to 0.56. CPI (All Urban Consumers) stands out as a strong leading indicator with a correlation of 0.85 over 24 months.
What It's Actually Worth
Blended value of a standard 35 yr, 62k mi example, ~$99.9K 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? 62% 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 78 scored forecasts: 62% got the direction right, median value error ±39%.
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 6 in 10
We replayed 725 past auctions in this market — predicting each hammer price from market data before the sale (no hindsight). Typical miss: ±31%; the gavel landed inside our predicted range 6 in 10 of the time.
| Sold | Car | Our range | Hammer | |
|---|---|---|---|---|
| 2026-09-18 | 1990 · 112k mi | $56.9K–$127K | $43.2K | ✗ |
| 2026-09-16 | 1990 · 167k mi | $50.0K–$112K | $77.7K | ✓ |
| 2026-09-15 | 1990 · 64k mi | $63.5K–$142K | $84.9K | ✓ |
| 2026-09-09 | 1991 · 43k mi | $84.4K–$189K | $149K | ✓ |
| 2026-09-08 | 1992 · 91k mi | $58.4K–$130K | $92.9K | ✓ |
| 2026-09-06 | 1994 · 196k mi | $44.5K–$99.3K | $39.5K | ✗ |
| 2026-09-05 | 1990 · 135k mi | $56.1K–$125K | $85.0K | ✓ |
| 2026-09-02 | 1992 · 15k mi | $127K–$284K | $165K | ✓ |
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 | 1991 · 63k mi | BaT | $58.1K–$167K ($98.4K) |
| open | 1990 · 69k mi | BaT | $56.8K–$163K ($96.1K) |
| open | 1994 · 172k mi | BaT | $44.5K–$128K ($75.4K) |
| open | 1991 · 180k mi | ebay | $43.1K–$123K ($72.9K) |
| open | 1991 · 52k mi | classic | $64.1K–$181K ($108K) |
| open | 1989 · 23k mi | classic | $86.6K–$243K ($145K) |
| open | 1989 · 36k mi | classic | $75.2K–$211K ($126K) |
| open | 1990 · 130k mi | classic | $41.8K–$117K ($70.0K) |
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 | FLAT | 50% | Low | 49% |
| 12 mo | UP | 55% | Low | 62% |
| 24 mo | UP | 57% | Low | 76% |
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.
Crystal Ball — What Leading Indicators Signal
Distinct from the trend forecast above: this blends all 8 leading indicators (each at its own lead time, de-duplicated so correlated ones don't double-count) into one signal. Leading indicators are collectively signaling higher over the next ~12 months (high conviction — 100% of weighted drivers agree), driven mainly by Initial Jobless Claims and Trade-Weighted Dollar Index.
Are the indicators agreeing?
Each bar is one driver's current push; longer = more weight. All one side = high conviction; split = low.
If You’d Bought in 2008
$100K invested 2008-12 → today (17.8 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.
CPI (All Urban Consumers) leads by about 24 months (moves with this market, correlation 0.85). Shown shifted forward 24 months so its turns line up with the market's.
Why We Think This
Current Inventory Snapshot
Comparable Markets
| Market | Undervaluation | Appreciation | Liquidity |
|---|---|---|---|
| BMW 1M Coupe (E82) | 44 | 44 | 57 |
| Nissan 350Z | 55 | 53 | 53 |
| Nissan 350Z NISMO | 51 | 9 | 56 |
| Nissan 370Z | 50 | 45 | 46 |
| Alfa Romeo 4C | 50 | 49 | 39 |
| Fiat 500 (2012-2019) | 66 | 29 | 48 |
| Porsche 718 Boxster/Cayman | 47 | 47 | 39 |
| Porsche 718 Boxster/Cayman GT4 | 19 | 42 | 41 |
Recent Signals & Alerts
- vin returned higher VIN relisted +$18,015 vs prior
- vin returned lower VIN relisted $-63,964 vs prior
- undisclosed title change VIN previously reported non-clean now listed clean/undisclosed
- vin returned higher VIN relisted +$60,000 vs prior
- vin returned lower VIN relisted $-34,000 vs prior
- undisclosed title change VIN previously reported non-clean now listed clean/undisclosed
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.