Used supercar · 1 trim
2018 Porsche 911Used Pricing, Value & 60-Day Forecast
Live market pricing and AI-powered 60-day price forecasts across every 2018 Porsche 911 trim CarCast tracks. Anchored to the Manheim Used Vehicle Value Index and BLS used-car CPI. Informational analytics, not financial advice.
Headline trim: GT2 RS
Price range
$216,389 – $649,888
across 1 indexable trim
Headline trim
GT2 RS
$649,888 · 13 avg listings
4-week forecast
$647,278
-0.4% on headline trim
8-week forecast
$644,251
-0.9% on headline trim
Headline forecast uses the most-listed indexable trim (GT2 RS). Per-trim forecasts in the table below are computed independently — no blind averaging across trims (condition and option-pack variance makes a model-level average misleading).
2018 Porsche 911 trim comparison
Sorted by listing volume| Trim | Current price | 4-week forecast | 8-week forecast | Avg listings | Open |
|---|---|---|---|---|---|
| GT2 RSHeadline | $649,888 | -0.4% | -0.9% | 13 | See forecast → |
| GT3Thin data | $216,389 | +0.5% | +0.1% | 4 | See forecast → |
| Turbo SThin data | — | — | — | 1 | See forecast → |
| GT3 RSThin data | — | — | — | 1 | See forecast → |
Market context
Used-car market benchmarksTop 2018 Porsche 911 trims
Other Porsche 911 model years
Forecasts and trend classifications are informational analytics only and do not constitute financial advice or a recommendation to purchase, hold, or sell any vehicle. Individual market conditions vary.
Track 2018 Porsche 911 prices across every trim
Get price alerts, weekly market updates, and full access to 60-day forecasts for every trim CarCast tracks.