Porsche 944/951
The Porsche 944/951 market currently shows a low appreciation momentum score of 36.42 and an undervaluation score of 55.03, with a high data confidence of 0.935. Forecasts indicate a slight upward trend over the next 6 to 24 months, with probabilities ranging from 0.52 to 0.54, though the market is anticipated to be volatile. CPI (All Urban Consumers) is a strong leading indicator for this market, showing a correlation of 0.79.
What It's Actually Worth
Blended value of a standard 38 yr, 66k mi example, ~$16.1K 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? 58% 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 99 scored forecasts: 58% got the direction right, median value error ±41%.
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 8 in 10
We replayed 487 past auctions in this market — predicting each hammer price from market data before the sale (no hindsight). Typical miss: ±29%; the gavel landed inside our predicted range 8 in 10 of the time.
| Sold | Car | Our range | Hammer | |
|---|---|---|---|---|
| 2026-09-18 | 1986 · 110k mi | $6.4K–$23.4K | $16.0K | ✓ |
| 2026-09-17 | 1987 · 67k mi | $7.9K–$29.0K | $15.6K | ✓ |
| 2026-09-16 | 1989 · 85k mi | $7.2K–$26.6K | $15.3K | ✓ |
| 2026-09-16 | 1984 · 46k mi | $9.1K–$33.2K | $3.5K | ✗ |
| 2026-09-15 | 1987 · 106k mi | $6.5K–$23.9K | $20.0K | ✓ |
| 2026-09-10 | 1986 · 59k mi | $8.3K–$30.3K | $23.2K | ✓ |
| 2026-08-21 | 1985 · 89k mi | $7.4K–$27.1K | $15.8K | ✓ |
| 2026-08-21 | 1985 · 89k mi | $6.3K–$34.1K | $15.8K | ✓ |
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 | 1987 · 96k mi | ebay | $6.0K–$32.8K ($14.1K) |
| open | 1983 · 83k mi | BaT | $6.2K–$33.4K ($14.3K) |
| open | 1987 · 96k mi | ebay | $5.6K–$30.2K ($13.0K) |
| open | 1989 | C&B | $6.4K–$34.7K ($14.9K) |
| open | 1987 · 96k mi | ebay | $5.6K–$30.3K ($13.0K) |
| open | 1987 · 96k mi | ebay | $5.9K–$32.0K ($13.8K) |
| open | 1986 · 21k mi | ebay | $8.8K–$47.4K ($20.5K) |
| open | 1990 · 72k mi | classic | $6.8K–$36.9K ($15.9K) |
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 | 53% | Low | 58% |
| 24 mo | UP | 55% | Low | 77% |
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 — 72% of weighted drivers agree), driven mainly by 10-Year Treasury Yield and Ethereum (USD), though Ethereum (USD) points the other way.
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 2008-03 → today (18.5 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 17 months (moves with this market, correlation 0.79). Shown shifted forward 17 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 | 84 | 22 | 32 |
| Mercedes-Benz 190SL | 51 | 40 | 56 |
| BMW 2002 tii | 60 | 33 | 13 |
| Datsun 240Z | 49 | 56 | 44 |
| Datsun 280Z | 48 | 45 | 59 |
| Ferrari 308 | 38 | 55 | 45 |
| Ferrari 308 GT4 | 54 | 47 | 15 |
| Ferrari 328 | 44 | 53 | 51 |
Recent Signals & Alerts
- vin returned higher VIN relisted +$8,500 vs prior
- vin returned lower VIN relisted $-12,500 vs prior
- undisclosed title change VIN previously reported non-clean now listed clean/undisclosed
- vin returned higher VIN relisted +$8,500 vs prior
- vin returned lower VIN relisted $-12,500 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.