As of August 2026, CarSearch.Pro's True Value model estimates a typical Porsche 911 GTS (991) is actually worth $134,300 (fair range $118,200 to $150,500). Unlike the median asking price shown above, True Value is anchored to 108 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 4% above what these cars have actually been selling for.
As of August 2026, the Porsche 911 GTS (991) market has 288 active listings across 14 marketplaces tracked by CarSearch.Pro. The median asking price is $139,999, with the middle 50% of listings priced between $124,994 and $162,990. Porsche 911 GTS (991) prices have decreased 10.0% over the past quarter, from a median sale price of $145,000 to $130,500.
The typical Porsche 911 GTS (991) on the market has 27,334 miles. Listings spend an average of 81 days on market before selling or being removed.
Current Porsche 911 GTS (991) Pricing
A fair price for a Porsche 911 GTS (991) in August 2026 is between $124,994 and $162,990 (25th to 75th percentile). Prices range from $109,823 to $179,999 across 288 active listings.
Price Distribution (288 Active Listings)
Percentile
Price
Meaning
10th
$109,823
Budget / project cars
25th
$124,994
Below average price
Median (50th)
$139,999
Typical market price
75th
$162,990
Above average / premium
90th
$179,999
Top tier / low miles / rare spec
The average asking price is $145,144, which is higher than the median, indicating that high-priced outliers (rare specifications, very low mileage, or concours-quality examples) pull the average up.
Price by Mileage
Mileage Range
Listings
Median Price
Under 10,000 mi
44
$174,999
10,000 - 25,000 mi
88
$149,995
25,000 - 50,000 mi
126
$134,950
50,000 - 100,000 mi
25
$126,991
100,000 - 150,000 mi
2
$78,495
Porsche 911 GTS (991) Price Trends
Porsche 911 GTS (991) prices have decreased 10.0% over the past quarter. In 2026-Q3, the median sale price was $130,500 across 44 sales, down from $145,000 in 2026-Q2.
On a year-over-year basis, Porsche 911 GTS (991) prices are down 1.9% ($130,500 vs. $132,990 a year ago).
Porsche 911 GTS (991) Quarterly Sale Prices (Historical)
Quarter
Sales
Median Price
Average Price
2024-Q4
38
$124,945
$127,013
2025-Q1
40
$124,000
$126,250
2025-Q2
67
$124,216
$124,984
2025-Q3
78
$132,990
$133,859
2025-Q4
83
$132,900
$132,344
2026-Q1
61
$132,999
$134,646
2026-Q2
125
$145,000
$144,866
2026-Q3
44
$130,500
$132,915
Best Value Porsche 911 GTS (991) by Model Year
The 2012 Porsche 911 GTS (991) offers the best value with a median price of $104,900 across 17 listings. The most expensive model year is 2017 at a median of $155,995.
Median Price by Model Year
Year
Listings
Median Price
Min
Max
2012
17
$104,900
$67,500
$158,876
2015
33
$117,675
$5,000
$169,995
2016
76
$145,000
$59,000
$289,900
2017
26
$155,995
$107,999
$259,991
2018
54
$148,685
$99,900
$229,900
2019
80
$149,900
$81,800
$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 19,500 miles:
Odometer (approx.)
Value Multiplier
Implied Value
621 mi
1.51x
$203,458
5,138 mi
1.29x
$173,477
10,838 mi
1.11x
$148,795
19,870 mi
1.01x
$135,063
36,392 mi
0.84x
$112,331
62,338 mi
0.72x
$96,235
97,717 mi
0.65x
$87,150
128,000 mi
0.63x
$84,644
300,000 mi
0.58x
$78,001
Low-mileage examples carry a real premium in this market: around 621 miles, cars trade at roughly 1.51x the reference value. At the other end, 300,000-mile examples trade at about 0.58x. 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
49%
volatile
55% over 49 tests
12 months
↑ UP
52%
volatile
51% over 43 tests
24 months
↑ UP
55%
volatile
58% over 31 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 29 active listings, followed by TX (21), AZ (16), OH (15), FL (14).
Regional pricing varies significantly. The lowest median price is in AZ at $127,991, while CO has the highest at $179,999. Buyers willing to travel or arrange transport may find savings of $52,008.
Top States by Inventory
State
Listings
Median Price
CA
29
$139,980
TX
21
$129,891
AZ
16
$127,991
OH
15
$155,990
FL
14
$134,995
NC
12
$144,998
IL
11
$165,000
OR
7
$167,900
PA
7
$179,999
IN
6
$174,999
Porsche 911 GTS (991) Market Velocity
Porsche 911 GTS (991) listings spend an average of 81 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 59 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: $124,994 to $162,990. The median is $139,999. Anything below $124,994 is a strong value; above $162,990 should be premium condition, low miles, or a desirable specification.
Trending down: Porsche 911 GTS (991) prices have dropped 10.0% recently. Patient buyers may benefit from waiting, but desirable examples still sell quickly.
Best value year: The 2012 model year has the lowest median price at $104,900, making it the most accessible entry point into Porsche 911 GTS (991) ownership.
Negotiate: With an average of 81 days on market, sellers are often willing to negotiate. Listings over 60 days old are especially open to offers.