Porsche 911 GTS (991)
Flagged undervalued because sell-through 100%, and -8% vs 2-yr avg.
What It's Actually Worth
Blended value of a standard 7 yr, 11k mi example, ~$147K 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? 85% 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 13 scored forecasts: 85% got the direction right, median value error ±15%.
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 10 in 10
We replayed 56 past auctions in this market — predicting each hammer price from market data before the sale (no hindsight). Typical miss: ±7%; the gavel landed inside our predicted range 10 in 10 of the time.
| Sold | Car | Our range | Hammer | |
|---|---|---|---|---|
| 2026-05-27 | 2019 · 40k mi | $89.8K–$217K | $139K | ✓ |
| 2026-05-18 | 2019 · 14k mi | $95.9K–$231K | $147K | ✓ |
| 2026-05-14 | 2018 · 21k mi | $92.3K–$223K | $178K | ✓ |
| 2026-05-04 | 2019 · 30k mi | $91.7K–$221K | $134K | ✓ |
| 2026-04-25 | 2019 · 8k mi | $105K–$253K | $185K | ✓ |
| 2026-04-25 | 2017 · 9k mi | $87.7K–$282K | $148K | ✓ |
| 2026-04-25 | 2017 · 9k mi | $103K–$248K | $148K | ✓ |
| 2026-04-22 | 2017 · 9k mi | $103K–$248K | $156K | ✓ |
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 | 2017 · 27k mi | classic | $79.2K–$254K ($142K) |
| open | 2015 · 7k mi | classic | $91.7K–$294K ($164K) |
| open | 2018 · 16k mi | classic | $81.5K–$262K ($146K) |
| open | 2016 · 23k mi | classic | $79.1K–$254K ($142K) |
| open | 2018 · 34k mi | classic | $78.6K–$252K ($141K) |
| open | 2016 · 40k mi | classic | $77.1K–$247K ($138K) |
| open | 2016 · 57k mi | classic | $73.8K–$237K ($132K) |
| open | 2019 · 21k mi | classic | $79.3K–$255K ($142K) |
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 | 47% | Moderate | 53% |
| 12 mo | UP | 50% | Moderate | 85% |
| 24 mo | UP | 52% | Moderate | 0% |
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 2021
$100K invested 2021-10 → today (4.7 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.
10-Year Treasury Yield leads by about 12 months (moves with this market, correlation 0.69). Shown shifted forward 12 months so its turns line up with the market's.
Why We Think This
Current Inventory Snapshot
Comparable Markets
| Market | Undervaluation | Appreciation | Liquidity |
|---|---|---|---|
| Porsche 911 GT2 RS (991) | 30 | 66 | 53 |
| Porsche 911 GT3 (991) | 56 | 46 | 52 |
| Porsche 911 Turbo (991) | 50 | 50 | 50 |
Recent Signals & Alerts
- vin returned lower VIN relisted $-54,885 vs prior
- vin returned higher VIN relisted +$21,578 vs prior
- vin returned lower VIN relisted $-54,885 vs prior
- vin returned higher VIN relisted +$32,900 vs prior
- vin returned higher VIN relisted +$32,900 vs prior
- vin returned lower VIN relisted $-54,885 vs prior
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.