2018 Porsche 911 Turbo S Cabriolet (991.2) Market Value & Price History
The 2018 Porsche 911 Turbo S Cabriolet (991.2) has a market value of $143,327, based on 9 verified auction sales tracked by DriveIndex, with half of the verified USD sales since 2021 between $141,000 and $165,000. No sale since Apr 28, 2025, so this value may not reflect today's market. 11 are listed for sale from $124,999 to $219,998.
Data: DriveIndex. 9 verified auction sales for the 2018 Porsche 911 Turbo S Cabriolet (991.2), latest sale Apr 28, 2025. Methodology
What members see for the 2018 Porsche 911 Turbo S Cabriolet (991.2)
The value above is the headline. Members get the full picture behind it.
- All 9 sold prices, and where each one sold
- The live Value Signal, and how confident it is
- A 1–5 year value projection
- A Buy / Hold / Sell call
- An alert the moment one lists or sells
- The best and worst months to buy and sell
- An estimated market-bottom date
- Whether each of the 11 asks listed for sale is fair
- Deal Radar: underpriced listings across the market
Not ready? A free account shows the current value and recent sale dates.
Pro unlocks this car's live Value Signal (appreciating, stable, bottomed, approaching bottom or depreciating) and its 1–5 year projection. Collector adds the best months to buy and sell.
See the 911 Turbo S Cabriolet's Value Signal with Pro →2018 Porsche 911 Turbo S Cabriolet (991.2) For Sale (11)
Last checked Oct 12, 2026, unless a listing shows its own date
Recent 2018 Porsche 911 Turbo S Cabriolet (991.2) Auction Results
| Sold | Price | Mileage | Gearbox |
|---|---|---|---|
| Apr 28, 2025 | $141,000 | 34,000 mi | Automatic |
| Nov 18, 2024 | $141,000 | 18,000 mi | Automatic |
| Nov 14, 2024 | $125,000 | 37,000 mi | Automatic |
| Mar 9, 2024 | $165,000 | 7,000 mi | — |
| Mar 2, 2024 | $142,222 | 22,000 mi | Automatic |
| Nov 2, 2023 | $160,000 | 16,000 mi | Automatic |
| Apr 4, 2022 | $180,000 | 13,000 mi | Automatic |
| Oct 19, 2021 | $202,000 | 23,000 mi | Automatic |
| Feb 11, 2021 | $151,500 | 10,748 mi | Automatic |
Verified results from the world's leading collector-car auction houses and marketplaces.
All Porsche 911 Turbo S Cabriolet auction results →See the full picture on the 2018 Porsche 911 Turbo S Cabriolet (991.2)
Browsing is free. Upgrade to unlock the Value Signal™, projections, and the tools collectors use to buy and sell at the right time.
- Full Value Signal™ + confidence: appreciating, stable, or depreciating
- 1–5 year price projections
- Buy / Hold / Sell call per car
- Complete sales & listings feed + up to 10 yrs of history
- Analyst notes & compare up to 4 cars
- Price & custom alerts (make, color, options)
- Portfolio tracker (garage) + analytics
- Everything in Pro, plus:
- Portfolio Outlook (a hold/sell call for every car you own)
- Watchlist Intelligence (act-now calls on the cars you follow)
- Head-to-Head Verdict (compare cars, the data crowns the buy)
- Market Deal Radar (every live ask under market value, catalog-wide)
- Best & worst months to buy and sell
- What each option adds to the price + separate manual vs automatic values
- Listing analyzer with fair-value deal scores
- Rad’s Market Update (his picks & price targets)
Porsche 911 Turbo S Cabriolet by Year
Which 911 Turbo S Cabriolet year should you buy? Every year compared →2018 Porsche 911 Turbo S Cabriolet (991.2): Frequently Asked Questions
How much is a 2018 Porsche 911 Turbo S Cabriolet (991.2) worth?
A 2018 Porsche 911 Turbo S Cabriolet (991.2) is worth approximately $143,327, based on 9 verified auction sales tracked by DriveIndex. No sale since Apr 28, 2025, so this value may not reflect today's market. Half of all verified sales fall between $141,000 and $165,000; the full verified range is $125,000 to $202,000. Condition, mileage and options move an individual car within that band.
How much did a 2018 Porsche 911 Turbo S Cabriolet (991.2) cost new?
The 2018 Porsche 911 Turbo S Cabriolet (991.2) carried an original MSRP of $201,500. Its DriveIndex market value is $143,327. No sale since Apr 28, 2025, so this value may not reflect today's market.
How much has the 2018 Porsche 911 Turbo S Cabriolet (991.2) depreciated?
The 2018 Porsche 911 Turbo S Cabriolet (991.2) is worth about 29% less than it cost new: it carried an original MSRP of $201,500, and its DriveIndex market value is $143,327. That compares the DriveIndex value with the sticker price, not adjusted for inflation. No sale since Apr 28, 2025, so this value may not reflect today's market.
How many 2018 Porsche 911 Turbo S Cabriolet (991.2) sell per year?
DriveIndex has tracked 9 2018 Porsche 911 Turbo S Cabriolet (991.2) sales at auction.
Are 2018 Porsche 911 Turbo S Cabriolet (991.2) sale prices higher or lower than a year ago?
There aren't yet enough recent sales to compute a reliable 12-month price direction for the 2018 Porsche 911 Turbo S Cabriolet (991.2). The full Value Signal classification (appreciating, stable, bottomed, or depreciating) and its 1–5 year projection are part of DriveIndex Pro.
Where can I buy a 2018 Porsche 911 Turbo S Cabriolet (991.2)?
DriveIndex lists 11 2018 Porsche 911 Turbo S Cabriolet (991.2) for sale, priced from $124,999 to $219,998 (last checked Oct 12, 2026). DriveIndex aggregates for-sale listings and auction results from the world's leading collector-car auction houses and marketplaces.
More Porsche Models
All Porsche models →Collections Featuring Porsche
Pro unlocks its live Value Signal, every sold price, a 1–5 year projection and an alert the moment one lists or sells. Collector adds the best months to buy and sell and where the market bottoms.
Get Pro →