As of October 2026, CarSearch.Pro's True Value model estimates a typical Porsche 911 GTS (991) is actually worth $136,500 (fair range $120,100 to $152,900). Unlike the median asking price shown above, True Value is anchored to 111 recent confirmed sales, normalized for mileage, and blends auction hammer prices (grossed up for buyer's premium) with real-world asking behavior.
Sellers are currently asking a median of $140,000 — about 3% above what these cars have actually been selling for.
As of October 2026, the Porsche 911 GTS (991) market has 228 active listings across 14 marketplaces tracked by CarSearch.Pro. The median asking price is $145,000, with the middle 50% of listings priced between $127,613 and $159,995. Porsche 911 GTS (991) prices have increased 27.5% over the past quarter, from a median sale price of $137,950 to $175,900.
The typical Porsche 911 GTS (991) on the market has 27,334 miles. Listings spend an average of 104 days on market before selling or being removed.
Current Porsche 911 GTS (991) Pricing
A fair price for a Porsche 911 GTS (991) in October 2026 is between $127,613 and $159,995 (25th to 75th percentile). Prices range from $112,995 to $175,900 across 228 active listings.
Price Distribution (228 Active Listings)
Percentile
Price
Meaning
10th
$112,995
Budget / project cars
25th
$127,613
Below average price
Median (50th)
$145,000
Typical market price
75th
$159,995
Above average / premium
90th
$175,900
Top tier / low miles / rare spec
The average asking price is $144,357, which is lower than the median, suggesting pricing is relatively symmetrical across the market.
Price by Mileage
Mileage Range
Listings
Median Price
Under 10,000 mi
26
$164,000
10,000 - 25,000 mi
78
$154,990
25,000 - 50,000 mi
101
$133,890
50,000 - 100,000 mi
20
$127,791
Porsche 911 GTS (991) Price Trends
Porsche 911 GTS (991) prices have increased 27.5% over the past quarter. In 2026-Q4, the median sale price was $175,900 across 2 sales, up from $137,950 in 2026-Q3.
On a year-over-year basis, Porsche 911 GTS (991) prices are up 30.4% ($175,900 vs. $134,888 a year ago).
Porsche 911 GTS (991) Quarterly Sale Prices (Historical)
Quarter
Sales
Median Price
Average Price
2025-Q1
35
$125,950
$128,343
2025-Q2
46
$134,990
$136,328
2025-Q3
68
$138,950
$138,656
2025-Q4
65
$134,888
$136,126
2026-Q1
50
$139,900
$141,907
2026-Q2
247
$134,950
$137,797
2026-Q3
88
$137,950
$145,225
2026-Q4
2
$175,900
$171,450
Best Value Porsche 911 GTS (991) by Model Year
The 2015 Porsche 911 GTS (991) offers the best value with a median price of $119,900 across 22 listings. The most expensive model year is 2017 at a median of $158,749.
Median Price by Model Year
Year
Listings
Median Price
Min
Max
2012
20
$119,900
$87,991
$199,998
2015
22
$119,900
$86,998
$199,995
2016
55
$134,900
$59,000
$248,685
2017
23
$158,749
$119,900
$259,991
2018
44
$145,999
$99,587
$239,998
2019
63
$149,900
$59,999
$199,995
How Mileage Affects Porsche 911 GTS (991) Value
Most price guides assume value falls linearly with mileage. It doesn't. CarSearch.Pro learns the actual price-vs-mileage curve for the Porsche 911 GTS (991) from confirmed sales, referenced to a typical example at about 20,000 miles:
Odometer (approx.)
Value Multiplier
Implied Value
709 mi
1.47x
$200,514
5,073 mi
1.29x
$175,569
10,759 mi
1.10x
$149,780
19,943 mi
1.01x
$137,703
36,753 mi
0.90x
$122,498
62,338 mi
0.71x
$96,809
97,717 mi
0.64x
$87,816
128,000 mi
0.64x
$86,828
300,000 mi
0.57x
$78,235
Low-mileage examples carry a real premium in this market: around 709 miles, cars trade at roughly 1.47x the reference value. At the other end, 300,000-mile examples trade at about 0.57x. Implied values here are anchored to this market's True Value.
Porsche 911 GTS (991) Price Forecast
Horizon
Direction
Probability
Regime
Past Accuracy
6 months
↑ UP
52%
volatile
57% over 51 tests
12 months
↑ UP
55%
volatile
53% over 45 tests
24 months
↑ UP
58%
volatile
73% over 33 tests
These are probabilistic direction calls, not price targets. The "Past Accuracy" column is this model's real walk-forward record on the Porsche 911 GTS (991) — every month we re-run the forecast as if we only knew what was knowable then, and grade it against what actually happened. We publish the hit rate either way. Full methodology & track record →
Where to Buy a Porsche 911 GTS (991)
The highest concentration of Porsche 911 GTS (991) listings is in CA with 18 active listings, followed by TX (13), FL (10), NC (9), AZ (8).
Regional pricing varies significantly. The lowest median price is in GA at $121,985, while PA has the highest at $164,490. Buyers willing to travel or arrange transport may find savings of $42,505.
Top States by Inventory
State
Listings
Median Price
CA
18
$140,172
TX
13
$139,995
FL
10
$144,986
NC
9
$137,998
AZ
8
$127,791
IL
6
$159,995
OH
5
$157,186
TN
5
$149,999
OR
5
$149,900
VA
4
$159,810
Porsche 911 GTS (991) Market Velocity
Porsche 911 GTS (991) listings spend an average of 104 days on market. This is a slow-moving market. Listings tend to sit for extended periods, giving buyers significant negotiating power. Sellers should be realistic on pricing and patient.
The median time on market is 63 days. The lower median suggests most cars sell relatively quickly, while a smaller number of overpriced listings drag up the average.
Porsche 911 GTS (991) Buyer's Guide Summary
Fair price range: $127,613 to $159,995. The median is $145,000. Anything below $127,613 is a strong value; above $159,995 should be premium condition, low miles, or a desirable specification.
Trending up: Porsche 911 GTS (991) prices have risen 27.5% recently. Buying sooner may save money if the trend continues.
Best value year: The 2015 model year has the lowest median price at $119,900, making it the most accessible entry point into Porsche 911 GTS (991) ownership.
Negotiate: With an average of 104 days on market, sellers are often willing to negotiate. Listings over 60 days old are especially open to offers.