As of October 2026, CarSearch.Pro's True Value model estimates a typical Porsche 911 GT3 (991) is actually worth $196,200 (fair range $172,600 to $219,700). Unlike the median asking price shown above, True Value is anchored to 189 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 $226,900 — about 16% above what these cars have actually been selling for. That gap favors patient buyers: negotiate from the sold data, not the ask.
Well-supported value · momentum improving — but volatile.
As of October 2026, the Porsche 911 GT3 (991) market has 437 active listings across 14 marketplaces tracked by CarSearch.Pro. The median asking price is $229,900, with the middle 50% of listings priced between $166,997 and $272,888. Porsche 911 GT3 (991) prices have decreased 29.2% over the past quarter, from a median sale price of $226,000 to $159,900.
The typical Porsche 911 GT3 (991) on the market has 17,145 miles. Listings spend an average of 90 days on market before selling or being removed.
Current Porsche 911 GT3 (991) Pricing
A fair price for a Porsche 911 GT3 (991) in October 2026 is between $166,997 and $272,888 (25th to 75th percentile). Prices range from $145,000 to $325,990 across 437 active listings.
Price Distribution (437 Active Listings)
Percentile
Price
Meaning
10th
$145,000
Budget / project cars
25th
$166,997
Below average price
Median (50th)
$229,900
Typical market price
75th
$272,888
Above average / premium
90th
$325,990
Top tier / low miles / rare spec
The average asking price is $230,977, 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
116
$284,499
10,000 - 25,000 mi
199
$224,950
25,000 - 50,000 mi
111
$189,000
50,000 - 100,000 mi
11
$139,900
Porsche 911 GT3 (991) Price Trends
Porsche 911 GT3 (991) prices have decreased 29.2% over the past quarter. In 2026-Q4, the median sale price was $159,900 across 4 sales, down from $226,000 in 2026-Q3.
Porsche 911 GT3 (991) Quarterly Sale Prices (Historical)
Quarter
Sales
Median Price
Average Price
2026-Q1
155
$212,990
$211,068
2026-Q2
610
$215,000
$215,890
2026-Q3
231
$226,000
$226,437
2026-Q4
4
$159,900
$156,921
Best Value Porsche 911 GT3 (991) by Model Year
The 2014 Porsche 911 GT3 (991) offers the best value with a median price of $145,875 across 27 listings. The most expensive model year is 2019 at a median of $279,990.
Median Price by Model Year
Year
Listings
Median Price
Min
Max
2014
27
$145,875
$105,000
$172,000
2015
86
$153,000
$108,999
$195,984
2016
63
$239,900
$144,975
$339,900
2018
131
$226,990
$144,990
$447,469
2019
127
$279,990
$148,900
$399,990
How Mileage Affects Porsche 911 GT3 (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 GT3 (991) from confirmed sales, referenced to a typical example at about 9,000 miles:
Odometer (approx.)
Value Multiplier
Implied Value
506 mi
1.25x
$244,379
4,771 mi
1.16x
$227,822
10,435 mi
0.98x
$191,823
20,901 mi
0.88x
$173,608
37,135 mi
0.68x
$132,657
65,001 mi
0.69x
$135,676
97,980 mi
0.74x
$145,975
154,919 mi
0.66x
$129,313
300,000 mi
0.57x
$112,452
Low-mileage examples carry a real premium in this market: around 506 miles, cars trade at roughly 1.25x 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 GT3 (991) Price Forecast
Horizon
Direction
Probability
Regime
Past Accuracy
6 months
→ FLAT
50%
volatile
56% over 57 tests
12 months
↑ UP
62%
volatile
78% over 51 tests
24 months
↑ UP
68%
volatile
95% over 39 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 GT3 (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 GT3 (991)
The highest concentration of Porsche 911 GT3 (991) listings is in CA with 36 active listings, followed by FL (33), TX (31), AZ (23), NY (22).
Regional pricing varies significantly. The lowest median price is in VA at $149,810, while OR has the highest at $299,900. Buyers willing to travel or arrange transport may find savings of $150,090.
Top States by Inventory
State
Listings
Median Price
CA
36
$229,990
FL
33
$235,900
TX
31
$227,273
AZ
23
$159,888
NY
22
$259,999
NJ
14
$219,995
GA
13
$259,997
IL
9
$259,995
WA
8
$260,000
OR
7
$299,900
Porsche 911 GT3 (991) Market Velocity
Porsche 911 GT3 (991) listings spend an average of 90 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 52 days. The lower median suggests most cars sell relatively quickly, while a smaller number of overpriced listings drag up the average.
Porsche 911 GT3 (991) Buyer's Guide Summary
Fair price range: $166,997 to $272,888. The median is $229,900. Anything below $166,997 is a strong value; above $272,888 should be premium condition, low miles, or a desirable specification.
Trending down: Porsche 911 GT3 (991) prices have dropped 29.2% recently. Patient buyers may benefit from waiting, but desirable examples still sell quickly.
Best value year: The 2014 model year has the lowest median price at $145,875, making it the most accessible entry point into Porsche 911 GT3 (991) ownership.
Negotiate: With an average of 90 days on market, sellers are often willing to negotiate. Listings over 60 days old are especially open to offers.